aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--CHANGES.md1
-rw-r--r--Makefile4
-rw-r--r--docs/tomo.1.md60
-rw-r--r--man/man1/tomo.160
-rw-r--r--src/ast.c98
-rw-r--r--src/ast.h15
-rw-r--r--src/compile/comparisons.c14
-rw-r--r--src/compile/expressions.c5
-rw-r--r--src/compile/reductions.c7
-rw-r--r--src/formatter/args.c57
-rw-r--r--src/formatter/args.h13
-rw-r--r--src/formatter/enums.c51
-rw-r--r--src/formatter/enums.h11
-rw-r--r--src/formatter/formatter.c882
-rw-r--r--src/formatter/formatter.h13
-rw-r--r--src/formatter/types.c45
-rw-r--r--src/formatter/types.h8
-rw-r--r--src/formatter/utils.c154
-rw-r--r--src/formatter/utils.h30
-rw-r--r--src/parse/binops.c31
-rw-r--r--src/parse/containers.c32
-rw-r--r--src/parse/context.c8
-rw-r--r--src/parse/context.h5
-rw-r--r--src/parse/controlflow.c24
-rw-r--r--src/parse/expressions.c28
-rw-r--r--src/parse/files.c18
-rw-r--r--src/parse/functions.c41
-rw-r--r--src/parse/statements.c10
-rw-r--r--src/parse/suffixes.c30
-rw-r--r--src/parse/text.c20
-rw-r--r--src/parse/typedefs.c38
-rw-r--r--src/parse/types.c20
-rw-r--r--src/parse/utils.c16
-rw-r--r--src/parse/utils.h6
-rw-r--r--src/stdlib/text.c43
-rw-r--r--src/stdlib/text.h1
-rw-r--r--src/tomo.c83
-rw-r--r--src/typecheck.c3
-rw-r--r--test/enums.tm3
39 files changed, 1690 insertions, 298 deletions
diff --git a/CHANGES.md b/CHANGES.md
index 7a952e07..a57e3f95 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -11,6 +11,7 @@
- Added a versioning system based on `CHANGES.md` files and `modules.ini`
configuration for module aliases.
+- Added a `--format` flag to the `tomo` binary that autoformats your code.
- When attempting to run a program with a module that is not installed, Tomo
can prompt the user to automatically install it.
- Programs can use `--version` as a CLI flag to print a Tomo program's version
diff --git a/Makefile b/Makefile
index 9274d828..28e79760 100644
--- a/Makefile
+++ b/Makefile
@@ -95,7 +95,7 @@ else
endif
EXE_FILE=tomo_$(TOMO_VERSION)
-COMPILER_OBJS=$(patsubst %.c,%.o,$(wildcard src/*.c src/compile/*.c src/parse/*.c))
+COMPILER_OBJS=$(patsubst %.c,%.o,$(wildcard src/*.c src/compile/*.c src/parse/*.c src/formatter/*.c))
STDLIB_OBJS=$(patsubst %.c,%.o,$(wildcard src/stdlib/*.c))
TESTS=$(patsubst test/%.tm,test/results/%.tm.testresult,$(wildcard test/[!_]*.tm))
API_YAML=$(wildcard api/*.yaml)
@@ -132,7 +132,7 @@ build/lib/$(AR_FILE): $(STDLIB_OBJS)
ar -rcs $@ $^
tags:
- ctags src/*.{c,h} src/stdlib/*.{c,h} src/compile/*.{c,h} src/parse/*.{c,h}
+ ctags src/*.{c,h} src/stdlib/*.{c,h} src/compile/*.{c,h} src/parse/*.{c,h} src/formatter/*.{c,h}
config.mk: configure.sh
bash ./configure.sh
diff --git a/docs/tomo.1.md b/docs/tomo.1.md
index feed98af..79c94ddd 100644
--- a/docs/tomo.1.md
+++ b/docs/tomo.1.md
@@ -32,41 +32,59 @@ C code, which is then compiled using a C compiler of your choice.
# OPTIONS
-`-h`, `--help`
-: Print the usage and exit.
+`--changelog`
+: Print the compiler change log and exit.
-`-t`, `--transpile`
-: Transpile the input files to C code without compiling them.
+`--compile-exe`, `-e`
+: Compile the input file to an executable.
-`-c`, `--compile-obj`
+`--compile-obj`, `-c`
: Compile the input files to static objects, rather than running them.
-`-e`, `--compile-exe`
-: Compile the input file to an executable.
-
-`-L`, `--library`
-: Compile the input files to a shared library file and header.
+`--help`, `-h`
+: Print the usage and exit.
-`-I`, `--install`
+`--install`, `-I`
: Install the compiled executable or library.
-`-C` *<program>*, `--show-codegen` *<program>*
+`--library`, `-L`
+: Compile the input files to a shared library file and header.
+
+`--show-codegen` *<program>*, `-C` *<program>*
: Set a program (e.g. `cat` or `bat`) to display the generated code
-`-O` **level**, `--optimization` **level**
-: Set the optimization level.
+`--force-rebuild`, `-f`
+: Force rebuilding/recompiling.
-`-v`, `--verbose`
-: Print extra verbose output.
+`--format`
+: Autoformat a file and print it to standard output.
-`--version`
-: Print the compiler version and exit.
+`--format-inplace`
+: Autoformat a file in-place.
-`--changelog`
-: Print the compiler change log and exit.
+`--optimization` **level**, `-O` **level**
+: Set the optimization level.
`--prefix`
: Print the Tomo installation prefix and exit.
-`-r`, `--run`
+`--quiet`, `-q`
+: Run in quiet mode.
+
+`--run`, `-r`
: Run an installed tomo program from `~/.local/lib/tomo_vX.Y/`.
+
+`--source-mapping=`, `-m=` **<yes|no>**
+: Toggle whether source mapping should be enabled or disabled.
+
+`--transpile`, `-t`
+: Transpile the input files to C code without compiling them.
+
+`--uninstall`, `-u`
+: Uninstall a compiled executable or library.
+
+`--verbose`, `-v`
+: Print extra verbose output.
+
+`--version`
+: Print the compiler version and exit.
diff --git a/man/man1/tomo.1 b/man/man1/tomo.1
index ae2b08d2..5134d963 100644
--- a/man/man1/tomo.1
+++ b/man/man1/tomo.1
@@ -29,45 +29,63 @@ It compiles by first outputting C code, which is then compiled using a C
compiler of your choice.
.SH OPTIONS
.TP
-\f[B]\-h\f[R], \f[B]\-\-help\f[R]
-Print the usage and exit.
+\f[B]\-\-changelog\f[R]
+Print the compiler change log and exit.
.TP
-\f[B]\-t\f[R], \f[B]\-\-transpile\f[R]
-Transpile the input files to C code without compiling them.
+\f[B]\-\-compile\-exe\f[R], \f[B]\-e\f[R]
+Compile the input file to an executable.
.TP
-\f[B]\-c\f[R], \f[B]\-\-compile\-obj\f[R]
+\f[B]\-\-compile\-obj\f[R], \f[B]\-c\f[R]
Compile the input files to static objects, rather than running them.
.TP
-\f[B]\-e\f[R], \f[B]\-\-compile\-exe\f[R]
-Compile the input file to an executable.
-.TP
-\f[B]\-L\f[R], \f[B]\-\-library\f[R]
-Compile the input files to a shared library file and header.
+\f[B]\-\-help\f[R], \f[B]\-h\f[R]
+Print the usage and exit.
.TP
-\f[B]\-I\f[R], \f[B]\-\-install\f[R]
+\f[B]\-\-install\f[R], \f[B]\-I\f[R]
Install the compiled executable or library.
.TP
-\f[B]\-C\f[R] \f[I]\f[R], \f[B]\-\-show\-codegen\f[R] \f[I]\f[R]
+\f[B]\-\-library\f[R], \f[B]\-L\f[R]
+Compile the input files to a shared library file and header.
+.TP
+\f[B]\-\-show\-codegen\f[R] \f[I]\f[R], \f[B]\-C\f[R] \f[I]\f[R]
Set a program (e.g.\ \f[B]cat\f[R] or \f[B]bat\f[R]) to display the
generated code
.TP
-\f[B]\-O\f[R] \f[B]level\f[R], \f[B]\-\-optimization\f[R] \f[B]level\f[R]
-Set the optimization level.
+\f[B]\-\-force\-rebuild\f[R], \f[B]\-f\f[R]
+Force rebuilding/recompiling.
.TP
-\f[B]\-v\f[R], \f[B]\-\-verbose\f[R]
-Print extra verbose output.
+\f[B]\-\-format\f[R]
+Autoformat a file and print it to standard output.
.TP
-\f[B]\-\-version\f[R]
-Print the compiler version and exit.
+\f[B]\-\-format\-inplace\f[R]
+Autoformat a file in\-place.
.TP
-\f[B]\-\-changelog\f[R]
-Print the compiler change log and exit.
+\f[B]\-\-optimization\f[R] \f[B]level\f[R], \f[B]\-O\f[R] \f[B]level\f[R]
+Set the optimization level.
.TP
\f[B]\-\-prefix\f[R]
Print the Tomo installation prefix and exit.
.TP
-\f[B]\-r\f[R], \f[B]\-\-run\f[R]
+\f[B]\-\-quiet\f[R], \f[B]\-q\f[R]
+Run in quiet mode.
+.TP
+\f[B]\-\-run\f[R], \f[B]\-r\f[R]
Run an installed tomo program from
\f[B]\[ti]/.local/lib/tomo_vX.Y/\f[R].
+.TP
+\f[B]\-\-source\-mapping=\f[R], \f[B]\-m=\f[R] \f[B]<yes|no>\f[R]
+Toggle whether source mapping should be enabled or disabled.
+.TP
+\f[B]\-\-transpile\f[R], \f[B]\-t\f[R]
+Transpile the input files to C code without compiling them.
+.TP
+\f[B]\-\-uninstall\f[R], \f[B]\-u\f[R]
+Uninstall a compiled executable or library.
+.TP
+\f[B]\-\-verbose\f[R], \f[B]\-v\f[R]
+Print extra verbose output.
+.TP
+\f[B]\-\-version\f[R]
+Print the compiler version and exit.
.SH AUTHORS
Bruce Hill (\f[I]bruce\[at]bruce\-hill.com\f[R]).
diff --git a/src/ast.c b/src/ast.c
index 53d80a81..486e0262 100644
--- a/src/ast.c
+++ b/src/ast.c
@@ -5,9 +5,37 @@
#include "ast.h"
#include "stdlib/datatypes.h"
+#include "stdlib/optionals.h"
#include "stdlib/tables.h"
#include "stdlib/text.h"
+const int op_tightness[NUM_AST_TAGS] = {
+ [Power] = 9,
+ [Multiply] = 8,
+ [Divide] = 8,
+ [Mod] = 8,
+ [Mod1] = 8,
+ [Plus] = 7,
+ [Minus] = 7,
+ [Concat] = 6,
+ [LeftShift] = 5,
+ [RightShift] = 5,
+ [UnsignedLeftShift] = 5,
+ [UnsignedRightShift] = 5,
+ [Min] = 4,
+ [Max] = 4,
+ [Equals] = 3,
+ [NotEquals] = 3,
+ [LessThan] = 2,
+ [LessThanOrEquals] = 2,
+ [GreaterThan] = 2,
+ [GreaterThanOrEquals] = 2,
+ [Compare] = 2,
+ [And] = 1,
+ [Or] = 1,
+ [Xor] = 1,
+};
+
static Text_t quoted_text(const char *text) { return Text$quoted(Text$from_str(text), false, Text("\"")); }
CONSTFUNC const char *binop_method_name(ast_e tag) {
@@ -44,39 +72,47 @@ CONSTFUNC const char *binop_method_name(ast_e tag) {
case XorUpdate: return "bit_xor";
default: return NULL;
}
-};
+}
CONSTFUNC const char *binop_operator(ast_e tag) {
switch (tag) {
- case Multiply:
- case MultiplyUpdate: return "*";
- case Divide:
- case DivideUpdate: return "/";
- case Mod:
- case ModUpdate: return "%";
- case Plus:
- case PlusUpdate: return "+";
- case Minus:
- case MinusUpdate: return "-";
- case LeftShift:
- case LeftShiftUpdate: return "<<";
- case RightShift:
- case RightShiftUpdate: return ">>";
- case And:
- case AndUpdate: return "&";
- case Or:
- case OrUpdate: return "|";
- case Xor:
- case XorUpdate: return "^";
+ case Power: return "^";
+ case PowerUpdate: return "^=";
+ case Concat: return "++";
+ case ConcatUpdate: return "++=";
+ case Multiply: return "*";
+ case MultiplyUpdate: return "*=";
+ case Divide: return "/";
+ case DivideUpdate: return "/=";
+ case Mod: return "mod";
+ case ModUpdate: return "mod=";
+ case Mod1: return "mod1";
+ case Mod1Update: return "mod1=";
+ case Plus: return "+";
+ case PlusUpdate: return "+=";
+ case Minus: return "-";
+ case MinusUpdate: return "-=";
+ case LeftShift: return "<<";
+ case LeftShiftUpdate: return "<<=";
+ case RightShift: return ">>";
+ case RightShiftUpdate: return ">>=";
+ case And: return "and";
+ case AndUpdate: return "and=";
+ case Or: return "or";
+ case OrUpdate: return "or=";
+ case Xor: return "xor";
+ case XorUpdate: return "xor=";
case Equals: return "==";
case NotEquals: return "!=";
case LessThan: return "<";
case LessThanOrEquals: return "<=";
case GreaterThan: return ">";
case GreaterThanOrEquals: return ">=";
+ case Min: return "_min_";
+ case Max: return "_max_";
default: return NULL;
}
-};
+}
static Text_t ast_list_to_sexp(ast_list_t *asts);
static Text_t arg_list_to_sexp(arg_ast_t *args);
@@ -175,8 +211,8 @@ Text_t ast_to_sexp(ast_t *ast) {
T(None, "(None)");
T(Bool, "(Bool ", data.b ? "yes" : "no", ")");
T(Var, "(Var ", quoted_text(data.name), ")");
- T(Int, "(Int ", quoted_text(ast_source(ast)), ")");
- T(Num, "(Num ", quoted_text(ast_source(ast)), ")");
+ T(Int, "(Int ", Text$quoted(ast_source(ast), false, Text("\"")), ")");
+ T(Num, "(Num ", Text$quoted(ast_source(ast), false, Text("\"")), ")");
T(TextLiteral, Text$quoted(data.text, false, Text("\"")));
T(TextJoin, "(Text", data.lang ? Texts(" :lang ", quoted_text(data.lang)) : EMPTY_TEXT,
ast_list_to_sexp(data.children), ")");
@@ -255,7 +291,7 @@ Text_t ast_to_sexp(ast_t *ast) {
")");
T(When, "(When ", ast_to_sexp(data.subject), when_clauses_to_sexp(data.clauses),
optional_sexp("else", data.else_body), ")");
- T(Reduction, "(Reduction ", quoted_text(binop_method_name(data.op)), " ", ast_to_sexp(data.key), " ",
+ T(Reduction, "(Reduction ", quoted_text(binop_operator(data.op)), " ", ast_to_sexp(data.key), " ",
ast_to_sexp(data.iter), ")");
T(Skip, "(Skip ", quoted_text(data.target), ")");
T(Stop, "(Stop ", quoted_text(data.target), ")");
@@ -285,13 +321,9 @@ Text_t ast_to_sexp(ast_t *ast) {
const char *ast_to_sexp_str(ast_t *ast) { return Text$as_c_string(ast_to_sexp(ast)); }
-const char *ast_source(ast_t *ast) {
- if (!ast) return NULL;
- size_t len = (size_t)(ast->end - ast->start);
- char *source = GC_MALLOC_ATOMIC(len + 1);
- memcpy(source, ast->start, len);
- source[len] = '\0';
- return source;
+OptionalText_t ast_source(ast_t *ast) {
+ if (ast == NULL || ast->start == NULL || ast->end == NULL) return NONE_TEXT;
+ return Text$from_strn(ast->start, (int64_t)(ast->end - ast->start));
}
PUREFUNC bool is_idempotent(ast_t *ast) {
@@ -400,6 +432,8 @@ void visit_topologically(ast_list_t *asts, Closure_t fn) {
CONSTFUNC bool is_binary_operation(ast_t *ast) {
switch (ast->tag) {
+ case Min:
+ case Max:
case BINOP_CASES: return true;
default: return false;
}
diff --git a/src/ast.h b/src/ast.h
index bf22c9f6..02c5ad74 100644
--- a/src/ast.h
+++ b/src/ast.h
@@ -65,6 +65,8 @@ typedef struct ast_list_s {
} ast_list_t;
typedef struct arg_ast_s {
+ file_t *file;
+ const char *start, *end;
const char *name, *alias;
type_ast_t *type;
ast_t *value;
@@ -88,6 +90,7 @@ typedef enum {
} type_ast_e;
typedef struct tag_ast_s {
+ const char *start, *end;
const char *name;
arg_ast_t *fields;
struct tag_ast_s *next;
@@ -160,7 +163,12 @@ struct type_ast_s {
case MinusUpdate: \
case ConcatUpdate: \
case LeftShiftUpdate: \
- case UnsignedLeftShiftUpdate
+ case UnsignedLeftShiftUpdate: \
+ case RightShiftUpdate: \
+ case UnsignedRightShiftUpdate: \
+ case AndUpdate: \
+ case OrUpdate: \
+ case XorUpdate
#define UPDATE_CASES \
PowerUpdate: \
case MultiplyUpdate: \
@@ -271,6 +279,7 @@ typedef enum {
Extend,
ExplicitlyTyped,
} ast_e;
+#define NUM_AST_TAGS (ExplicitlyTyped + 1)
struct ast_s {
ast_e tag;
@@ -470,7 +479,9 @@ struct ast_s {
} __data;
};
-const char *ast_source(ast_t *ast);
+extern const int op_tightness[NUM_AST_TAGS];
+
+OptionalText_t ast_source(ast_t *ast);
Text_t ast_to_sexp(ast_t *ast);
const char *ast_to_sexp_str(ast_t *ast);
diff --git a/src/compile/comparisons.c b/src/compile/comparisons.c
index d73664de..d7531261 100644
--- a/src/compile/comparisons.c
+++ b/src/compile/comparisons.c
@@ -7,6 +7,18 @@
#include "../typecheck.h"
#include "compilation.h"
+static CONSTFUNC const char *comparison_operator(ast_e tag) {
+ switch (tag) {
+ case Equals: return "==";
+ case NotEquals: return "!=";
+ case LessThan: return "<";
+ case LessThanOrEquals: return "<=";
+ case GreaterThan: return ">";
+ case GreaterThanOrEquals: return ">=";
+ default: return NULL;
+ }
+}
+
Text_t compile_comparison(env_t *env, ast_t *ast) {
switch (ast->tag) {
@@ -75,7 +87,7 @@ Text_t compile_comparison(env_t *env, ast_t *ast) {
if (ast->tag == Compare)
return Texts("generic_compare(stack(", lhs, "), stack(", rhs, "), ", compile_type_info(operand_t), ")");
- const char *op = binop_operator(ast->tag);
+ const char *op = comparison_operator(ast->tag);
switch (operand_t->tag) {
case BigIntType: return Texts("(Int$compare_value(", lhs, ", ", rhs, ") ", op, " 0)");
case BoolType:
diff --git a/src/compile/expressions.c b/src/compile/expressions.c
index 2320474a..544b7723 100644
--- a/src/compile/expressions.c
+++ b/src/compile/expressions.c
@@ -152,7 +152,7 @@ Text_t compile(env_t *env, ast_t *ast) {
ast_t *key = ast->tag == Min ? Match(ast, Min)->key : Match(ast, Max)->key;
ast_t *lhs = ast->tag == Min ? Match(ast, Min)->lhs : Match(ast, Max)->lhs;
ast_t *rhs = ast->tag == Min ? Match(ast, Min)->rhs : Match(ast, Max)->rhs;
- const char *key_name = "$";
+ const char *key_name = ast->tag == Min ? "_min_" : "_max_";
if (key == NULL) key = FakeAST(Var, key_name);
env_t *expr_env = fresh_scope(env);
@@ -237,7 +237,8 @@ Text_t compile(env_t *env, ast_t *ast) {
case Index: return compile_indexing(env, ast);
case InlineCCode: {
type_t *t = get_type(env, ast);
- if (t->tag == VoidType) return Texts("{\n", compile_statement(env, ast), "\n}");
+ if (Match(ast, InlineCCode)->type_ast != NULL) return Texts("({", compile_statement(env, ast), "; })");
+ else if (t->tag == VoidType) return Texts("{\n", compile_statement(env, ast), "\n}");
else return compile_statement(env, ast);
}
case Use: code_err(ast, "Compiling 'use' as expression!");
diff --git a/src/compile/reductions.c b/src/compile/reductions.c
index e0477a9c..1652384c 100644
--- a/src/compile/reductions.c
+++ b/src/compile/reductions.c
@@ -12,6 +12,7 @@ public
Text_t compile_reduction(env_t *env, ast_t *ast) {
DeclareMatch(reduction, ast, Reduction);
ast_e op = reduction->op;
+ const char *op_str = binop_operator(op);
type_t *iter_t = get_type(env, reduction->iter);
type_t *item_t = get_iterated_type(iter_t);
@@ -29,7 +30,7 @@ Text_t compile_reduction(env_t *env, ast_t *ast) {
type_t *item_value_type = item_t;
ast_t *item_value = item;
if (reduction->key) {
- set_binding(body_scope, "$", item_t, compile(body_scope, item));
+ set_binding(body_scope, op_str, item_t, compile(body_scope, item));
item_value = reduction->key;
item_value_type = get_type(body_scope, reduction->key);
}
@@ -67,7 +68,7 @@ Text_t compile_reduction(env_t *env, ast_t *ast) {
ast_e cmp_op = op == Min ? LessThan : GreaterThan;
if (reduction->key) {
env_t *key_scope = fresh_scope(env);
- set_binding(key_scope, "$", item_t, item_code);
+ set_binding(key_scope, op_str, item_t, item_code);
type_t *key_type = get_type(key_scope, reduction->key);
Text_t superlative_key = op == Min ? Text("min_key") : Text("max_key");
code = Texts(code, compile_declaration(key_type, superlative_key), ";\n");
@@ -111,7 +112,7 @@ Text_t compile_reduction(env_t *env, ast_t *ast) {
type_t *reduction_type = Match(get_type(env, ast), OptionalType)->type;
ast_t *item_value = item;
if (reduction->key) {
- set_binding(body_scope, "$", item_t, compile(body_scope, item));
+ set_binding(body_scope, op_str, item_t, compile(body_scope, item));
item_value = reduction->key;
}
diff --git a/src/formatter/args.c b/src/formatter/args.c
new file mode 100644
index 00000000..997a1e39
--- /dev/null
+++ b/src/formatter/args.c
@@ -0,0 +1,57 @@
+// Logic for formatting arguments and argument lists
+
+#include "../ast.h"
+#include "../stdlib/datatypes.h"
+#include "../stdlib/optionals.h"
+#include "../stdlib/text.h"
+#include "formatter.h"
+#include "types.h"
+#include "utils.h"
+
+OptionalText_t format_inline_arg(arg_ast_t *arg, Table_t comments) {
+ if (range_has_comment(arg->start, arg->end, comments)) return NONE_TEXT;
+ if (arg->name == NULL && arg->value) return must(format_inline_code(arg->value, comments));
+ Text_t code = Text$from_str(arg->name);
+ if (arg->type) code = Texts(code, ":", must(format_type(arg->type)));
+ if (arg->value) code = Texts(code, "=", must(format_inline_code(arg->value, comments)));
+ return code;
+}
+
+Text_t format_arg(arg_ast_t *arg, Table_t comments, Text_t indent) {
+ OptionalText_t inline_arg = format_inline_arg(arg, comments);
+ if (inline_arg.length >= 0 && inline_arg.length <= MAX_WIDTH) return inline_arg;
+ if (arg->name == NULL && arg->value) return format_code(arg->value, comments, indent);
+ Text_t code = Text$from_str(arg->name);
+ if (arg->type) code = Texts(code, ":", format_type(arg->type));
+ if (arg->value) code = Texts(code, "=", format_code(arg->value, comments, indent));
+ return code;
+}
+
+OptionalText_t format_inline_args(arg_ast_t *args, Table_t comments) {
+ Text_t code = EMPTY_TEXT;
+ for (arg_ast_t *arg = args; arg; arg = arg->next) {
+ if (arg->name && arg->next && arg->type == arg->next->type && arg->value == arg->next->value) {
+ code = Texts(code, Text$from_str(arg->name), ",");
+ } else {
+ code = Texts(code, must(format_inline_arg(arg, comments)));
+ if (arg->next) code = Texts(code, ", ");
+ }
+ if (arg->next && range_has_comment(arg->end, arg->next->start, comments)) return NONE_TEXT;
+ }
+ return code;
+}
+
+Text_t format_args(arg_ast_t *args, Table_t comments, Text_t indent) {
+ OptionalText_t inline_args = format_inline_args(args, comments);
+ if (inline_args.length >= 0 && inline_args.length <= MAX_WIDTH) return inline_args;
+ Text_t code = EMPTY_TEXT;
+ for (arg_ast_t *arg = args; arg; arg = arg->next) {
+ if (arg->name && arg->next && arg->type == arg->next->type && arg->value == arg->next->value) {
+ code = Texts(code, Text$from_str(arg->name), ",");
+ } else {
+ code = Texts(code, "\n", indent, single_indent, format_arg(arg, comments, Texts(indent, single_indent)));
+ if (args->next) code = Texts(code, ",");
+ }
+ }
+ return code;
+}
diff --git a/src/formatter/args.h b/src/formatter/args.h
new file mode 100644
index 00000000..42722f32
--- /dev/null
+++ b/src/formatter/args.h
@@ -0,0 +1,13 @@
+// Logic for formatting arguments and argument lists
+
+#pragma once
+
+#include "../ast.h"
+#include "../stdlib/datatypes.h"
+
+OptionalText_t format_inline_arg(arg_ast_t *arg, Table_t comments);
+Text_t format_arg(arg_ast_t *arg, Table_t comments, Text_t indent);
+OptionalText_t format_inline_args(arg_ast_t *args, Table_t comments);
+Text_t format_args(arg_ast_t *args, Table_t comments, Text_t indent);
+OptionalText_t format_inline_tag(tag_ast_t *tag, Table_t comments);
+Text_t format_tag(tag_ast_t *tag, Table_t comments, Text_t indent);
diff --git a/src/formatter/enums.c b/src/formatter/enums.c
new file mode 100644
index 00000000..893f055b
--- /dev/null
+++ b/src/formatter/enums.c
@@ -0,0 +1,51 @@
+// Logic for formatting enums and enum tags
+
+#include "../ast.h"
+#include "../stdlib/datatypes.h"
+#include "../stdlib/optionals.h"
+#include "../stdlib/text.h"
+#include "args.h"
+#include "utils.h"
+
+OptionalText_t format_inline_tag(tag_ast_t *tag, Table_t comments) {
+ if (range_has_comment(tag->start, tag->end, comments)) return NONE_TEXT;
+ Text_t code = Text$from_str(tag->name);
+ if (tag->fields || tag->secret) {
+ code = Texts(code, "(", must(format_inline_args(tag->fields, comments)));
+ if (tag->secret) code = Texts(code, "; secret");
+ code = Texts(code, ")");
+ }
+ return code;
+}
+
+Text_t format_tag(tag_ast_t *tag, Table_t comments, Text_t indent) {
+ OptionalText_t inline_tag = format_inline_tag(tag, comments);
+ if (inline_tag.length >= 0) return inline_tag;
+ Text_t code = Text$from_str(tag->name);
+ if (tag->fields || tag->secret) {
+ code = Texts(code, "(", format_args(tag->fields, comments, Texts(indent, single_indent)));
+ if (tag->secret) code = Texts(code, "; secret");
+ code = Texts(code, ")");
+ }
+ return code;
+}
+
+OptionalText_t format_inline_tags(tag_ast_t *tags, Table_t comments) {
+ Text_t code = EMPTY_TEXT;
+ for (; tags; tags = tags->next) {
+ code = Texts(code, must(format_inline_tag(tags, comments)));
+ if (tags->next) code = Texts(code, ", ");
+ if (tags->next && range_has_comment(tags->end, tags->next->start, comments)) return NONE_TEXT;
+ }
+ return code;
+}
+
+Text_t format_tags(tag_ast_t *tags, Table_t comments, Text_t indent) {
+ OptionalText_t inline_tags = format_inline_tags(tags, comments);
+ if (inline_tags.length >= 0) return inline_tags;
+ Text_t code = EMPTY_TEXT;
+ for (; tags; tags = tags->next) {
+ add_line(&code, Texts(format_tag(tags, comments, indent), ","), indent);
+ }
+ return code;
+}
diff --git a/src/formatter/enums.h b/src/formatter/enums.h
new file mode 100644
index 00000000..e7233df4
--- /dev/null
+++ b/src/formatter/enums.h
@@ -0,0 +1,11 @@
+// Logic for formatting enums and enum tags
+
+#pragma once
+
+#include "../ast.h"
+#include "../stdlib/datatypes.h"
+
+OptionalText_t format_inline_tag(tag_ast_t *tag, Table_t comments);
+Text_t format_tag(tag_ast_t *tag, Table_t comments, Text_t indent);
+OptionalText_t format_inline_tags(tag_ast_t *tags, Table_t comments);
+Text_t format_tags(tag_ast_t *tags, Table_t comments, Text_t indent);
diff --git a/src/formatter/formatter.c b/src/formatter/formatter.c
new file mode 100644
index 00000000..824a936a
--- /dev/null
+++ b/src/formatter/formatter.c
@@ -0,0 +1,882 @@
+// This code defines functions for transforming ASTs back into Tomo source text
+
+#include <assert.h>
+#include <setjmp.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <unictype.h>
+
+#include "../ast.h"
+#include "../parse/context.h"
+#include "../parse/files.h"
+#include "../parse/utils.h"
+#include "../stdlib/datatypes.h"
+#include "../stdlib/integers.h"
+#include "../stdlib/optionals.h"
+#include "../stdlib/stdlib.h"
+#include "../stdlib/text.h"
+#include "args.h"
+#include "enums.h"
+#include "formatter.h"
+#include "types.h"
+#include "utils.h"
+
+#define fmt_inline(...) must(format_inline_code(__VA_ARGS__))
+#define fmt(...) format_code(__VA_ARGS__)
+
+Text_t format_namespace(ast_t *namespace, Table_t comments, Text_t indent) {
+ if (unwrap_block(namespace) == NULL) return EMPTY_TEXT;
+ return Texts("\n", indent, single_indent, fmt(namespace, comments, Texts(indent, single_indent)));
+}
+
+typedef struct {
+ Text_t quote, unquote, interp;
+} text_opts_t;
+
+text_opts_t choose_text_options(ast_list_t *chunks) {
+ int double_quotes = 0, single_quotes = 0, backticks = 0;
+ for (ast_list_t *chunk = chunks; chunk; chunk = chunk->next) {
+ if (chunk->ast->tag == TextLiteral) {
+ Text_t literal = Match(chunk->ast, TextLiteral)->text;
+ if (Text$has(literal, Text("\""))) double_quotes += 1;
+ if (Text$has(literal, Text("'"))) single_quotes += 1;
+ if (Text$has(literal, Text("`"))) backticks += 1;
+ }
+ }
+ Text_t quote;
+ if (double_quotes == 0) quote = Text("\"");
+ else if (single_quotes == 0) quote = Text("'");
+ else if (backticks == 0) quote = Text("`");
+ else quote = Text("\"");
+
+ text_opts_t opts = {.quote = quote, .unquote = quote, .interp = Text("$")};
+ return opts;
+}
+
+static bool starts_with_id(Text_t text) {
+ List_t codepoints = Text$utf32_codepoints(Text$slice(text, I_small(1), I_small(1)));
+ return uc_is_property_xid_continue(*(ucs4_t *)codepoints.data);
+}
+
+static OptionalText_t format_inline_text(text_opts_t opts, ast_list_t *chunks, Table_t comments) {
+ Text_t code = opts.quote;
+ for (ast_list_t *chunk = chunks; chunk; chunk = chunk->next) {
+ if (chunk->ast->tag == TextLiteral) {
+ Text_t literal = Match(chunk->ast, TextLiteral)->text;
+ Text_t segment = Text$escaped(literal, false, Texts(opts.unquote, opts.interp));
+ code = Texts(code, segment);
+ } else {
+ if (chunk->ast->tag == Var
+ && (!chunk->next || chunk->next->ast->tag != TextLiteral
+ || !starts_with_id(Match(chunk->next->ast, TextLiteral)->text))) {
+ code = Texts(code, opts.interp, fmt_inline(chunk->ast, comments));
+ } else {
+ code = Texts(code, opts.interp, "(", fmt_inline(chunk->ast, comments), ")");
+ }
+ }
+ }
+ return Texts(code, opts.unquote);
+}
+
+static Text_t format_text(text_opts_t opts, ast_list_t *chunks, Table_t comments, Text_t indent) {
+ Text_t code = EMPTY_TEXT;
+ Text_t current_line = EMPTY_TEXT;
+ for (ast_list_t *chunk = chunks; chunk; chunk = chunk->next) {
+ if (chunk->ast->tag == TextLiteral) {
+ Text_t literal = Match(chunk->ast, TextLiteral)->text;
+ List_t lines = Text$lines(literal);
+ if (lines.length == 0) continue;
+ current_line = Texts(current_line, Text$escaped(*(Text_t *)lines.data, false, opts.interp));
+ for (int64_t i = 1; i < lines.length; i += 1) {
+ add_line(&code, current_line, Texts(indent, single_indent));
+ current_line = Text$escaped(*(Text_t *)(lines.data + i * lines.stride), false, opts.interp);
+ }
+ } else {
+ current_line = Texts(current_line, opts.interp, "(", fmt(chunk->ast, comments, indent), ")");
+ }
+ }
+ add_line(&code, current_line, Texts(indent, single_indent));
+ code = Texts(opts.quote, "\n", indent, single_indent, code, "\n", indent, opts.unquote);
+ return code;
+}
+
+OptionalText_t format_inline_code(ast_t *ast, Table_t comments) {
+ if (range_has_comment(ast->start, ast->end, comments)) return NONE_TEXT;
+ switch (ast->tag) {
+ /*inline*/ case Unknown:
+ fail("Invalid AST");
+ /*inline*/ case Block: {
+ ast_list_t *statements = Match(ast, Block)->statements;
+ if (statements == NULL) return Text("pass");
+ else if (statements->next == NULL) return fmt_inline(statements->ast, comments);
+ else return NONE_TEXT;
+ }
+ /*inline*/ case StructDef:
+ /*inline*/ case EnumDef:
+ /*inline*/ case LangDef:
+ /*inline*/ case Extend:
+ /*inline*/ case FunctionDef:
+ /*inline*/ case ConvertDef:
+ /*inline*/ case DocTest:
+ /*inline*/ case Extern:
+ return NONE_TEXT;
+ /*inline*/ case Assert: {
+ DeclareMatch(assert, ast, Assert);
+ Text_t expr = fmt_inline(assert->expr, comments);
+ if (!assert->message) return Texts("assert ", expr);
+ Text_t message = fmt_inline(assert->message, comments);
+ return Texts("assert ", expr, ", ", message);
+ }
+ /*inline*/ case Defer:
+ return Texts("defer ", fmt_inline(Match(ast, Defer)->body, comments));
+ /*inline*/ case Lambda: {
+ DeclareMatch(lambda, ast, Lambda);
+ Text_t code = Texts("func(", format_inline_args(lambda->args, comments));
+ if (lambda->ret_type)
+ code = Texts(code, lambda->args ? Text(" -> ") : Text("-> "), format_type(lambda->ret_type));
+ code = Texts(code, ") ", fmt_inline(lambda->body, comments));
+ return Texts(code);
+ }
+ /*inline*/ case If: {
+ DeclareMatch(if_, ast, If);
+
+ Text_t if_condition = if_->condition->tag == Not
+ ? Texts("unless ", fmt_inline(Match(if_->condition, Not)->value, comments))
+ : Texts("if ", fmt_inline(if_->condition, comments));
+
+ if (if_->else_body == NULL && if_->condition->tag != Declare) {
+ ast_t *stmt = unwrap_block(if_->body);
+ switch (stmt->tag) {
+ case Return:
+ case Skip:
+ case Stop: return Texts(fmt_inline(stmt, comments), " ", if_condition);
+ default: break;
+ }
+ }
+
+ Text_t code = Texts(if_condition, " then ", fmt_inline(if_->body, comments));
+ if (if_->else_body) code = Texts(code, " else ", fmt_inline(if_->else_body, comments));
+ return code;
+ }
+ /*inline*/ case When: {
+ DeclareMatch(when, ast, When);
+ Text_t code = Texts("when ", fmt_inline(when->subject, comments));
+ for (when_clause_t *clause = when->clauses; clause; clause = clause->next) {
+ code = Texts(code, " is ", fmt_inline(clause->pattern, comments));
+ while (clause->next && clause->next->body == clause->body) {
+ clause = clause->next;
+ code = Texts(code, ", ", fmt_inline(clause->pattern, comments));
+ }
+ code = Texts(code, " then ", fmt_inline(clause->body, comments));
+ }
+ if (when->else_body) code = Texts(code, " else ", fmt_inline(when->else_body, comments));
+ return code;
+ }
+ /*inline*/ case Repeat:
+ return Texts("repeat ", fmt_inline(Match(ast, Repeat)->body, comments));
+ /*inline*/ case While: {
+ DeclareMatch(loop, ast, While);
+ return Texts("while ", fmt_inline(loop->condition, comments), " do ", fmt_inline(loop->body, comments));
+ }
+ /*inline*/ case For: {
+ DeclareMatch(loop, ast, For);
+ Text_t code = Text("for ");
+ for (ast_list_t *var = loop->vars; var; var = var->next) {
+ code = Texts(code, fmt_inline(var->ast, comments));
+ if (var->next) code = Texts(code, ", ");
+ }
+ code = Texts(code, " in ", fmt_inline(loop->iter, comments), " do ", fmt_inline(loop->body, comments));
+ if (loop->empty) code = Texts(code, " else ", fmt_inline(loop->empty, comments));
+ return code;
+ }
+ /*inline*/ case Comprehension: {
+ DeclareMatch(comp, ast, Comprehension);
+ Text_t code = Texts(fmt_inline(comp->expr, comments), " for ");
+ for (ast_list_t *var = comp->vars; var; var = var->next) {
+ code = Texts(code, fmt_inline(var->ast, comments));
+ if (var->next) code = Texts(code, ", ");
+ }
+ code = Texts(code, " in ", fmt_inline(comp->iter, comments));
+ if (comp->filter) code = Texts(code, " if ", fmt_inline(comp->filter, comments));
+ return code;
+ }
+ /*inline*/ case List:
+ /*inline*/ case Set: {
+ ast_list_t *items = ast->tag == List ? Match(ast, List)->items : Match(ast, Set)->items;
+ Text_t code = EMPTY_TEXT;
+ for (ast_list_t *item = items; item; item = item->next) {
+ code = Texts(code, fmt_inline(item->ast, comments));
+ if (item->next) code = Texts(code, ", ");
+ }
+ return ast->tag == List ? Texts("[", code, "]") : Texts("|", code, "|");
+ }
+ /*inline*/ case Table: {
+ DeclareMatch(table, ast, Table);
+ Text_t code = EMPTY_TEXT;
+ for (ast_list_t *entry = table->entries; entry; entry = entry->next) {
+ code = Texts(code, fmt_inline(entry->ast, comments));
+ if (entry->next) code = Texts(code, ", ");
+ }
+ if (table->fallback) code = Texts(code, "; fallback=", fmt_inline(table->fallback, comments));
+ if (table->default_value) code = Texts(code, "; default=", fmt_inline(table->default_value, comments));
+ return Texts("{", code, "}");
+ }
+ /*inline*/ case TableEntry: {
+ DeclareMatch(entry, ast, TableEntry);
+ return Texts(fmt_inline(entry->key, comments), "=", fmt_inline(entry->value, comments));
+ }
+ /*inline*/ case Declare: {
+ DeclareMatch(decl, ast, Declare);
+ Text_t code = fmt_inline(decl->var, comments);
+ if (decl->type) code = Texts(code, " : ", format_type(decl->type));
+ if (decl->value) code = Texts(code, decl->type ? Text(" = ") : Text(" := "), fmt_inline(decl->value, comments));
+ return code;
+ }
+ /*inline*/ case Assign: {
+ DeclareMatch(assign, ast, Assign);
+ Text_t code = EMPTY_TEXT;
+ for (ast_list_t *target = assign->targets; target; target = target->next) {
+ code = Texts(code, fmt_inline(target->ast, comments));
+ if (target->next) code = Texts(code, ", ");
+ }
+ code = Texts(code, " = ");
+ for (ast_list_t *value = assign->values; value; value = value->next) {
+ code = Texts(code, fmt_inline(value->ast, comments));
+ if (value->next) code = Texts(code, ", ");
+ }
+ return code;
+ }
+ /*inline*/ case Pass:
+ return Text("pass");
+ /*inline*/ case Return: {
+ ast_t *value = Match(ast, Return)->value;
+ return value ? Texts("return ", fmt_inline(value, comments)) : Text("return");
+ }
+ /*inline*/ case Not: {
+ ast_t *val = Match(ast, Not)->value;
+ return Texts("not ", must(termify_inline(val, comments)));
+ }
+ /*inline*/ case Negative: {
+ ast_t *val = Match(ast, Negative)->value;
+ return Texts("-", must(termify_inline(val, comments)));
+ }
+ /*inline*/ case HeapAllocate: {
+ ast_t *val = Match(ast, HeapAllocate)->value;
+ return Texts("@", must(termify_inline(val, comments)));
+ }
+ /*inline*/ case StackReference: {
+ ast_t *val = Match(ast, StackReference)->value;
+ return Texts("&", must(termify_inline(val, comments)));
+ }
+ /*inline*/ case Optional: {
+ ast_t *val = Match(ast, Optional)->value;
+ return Texts(must(termify_inline(val, comments)), "?");
+ }
+ /*inline*/ case NonOptional: {
+ ast_t *val = Match(ast, NonOptional)->value;
+ return Texts(must(termify_inline(val, comments)), "!");
+ }
+ /*inline*/ case FieldAccess: {
+ DeclareMatch(access, ast, FieldAccess);
+ return Texts(must(termify_inline(access->fielded, comments)), ".", Text$from_str(access->field));
+ }
+ /*inline*/ case Index: {
+ DeclareMatch(index, ast, Index);
+ Text_t indexed = must(termify_inline(index->indexed, comments));
+ if (index->index) return Texts(indexed, "[", fmt_inline(index->index, comments), "]");
+ else return Texts(indexed, "[]");
+ }
+ /*inline*/ case TextJoin: {
+ text_opts_t opts = choose_text_options(Match(ast, TextJoin)->children);
+ Text_t ret = must(format_inline_text(opts, Match(ast, TextJoin)->children, comments));
+ const char *lang = Match(ast, TextJoin)->lang;
+ return lang ? Texts("$", Text$from_str(lang), ret) : ret;
+ }
+ /*inline*/ case InlineCCode: {
+ DeclareMatch(c_code, ast, InlineCCode);
+ Text_t code = c_code->type_ast ? Texts("C_code:", format_type(c_code->type_ast)) : Text("C_code");
+ text_opts_t opts = {.quote = Text("`"), .unquote = Text("`"), .interp = Text("@")};
+ return Texts(code, must(format_inline_text(opts, Match(ast, InlineCCode)->chunks, comments)));
+ }
+ /*inline*/ case TextLiteral: { fail("Something went wrong, we shouldn't be formatting text literals directly"); }
+ /*inline*/ case Path: {
+ return Texts("(", Text$escaped(Text$from_str(Match(ast, Path)->path), false, Text("()")), ")");
+ }
+ /*inline*/ case Stop: {
+ const char *target = Match(ast, Stop)->target;
+ return target ? Texts("stop ", Text$from_str(target)) : Text("stop");
+ }
+ /*inline*/ case Skip: {
+ const char *target = Match(ast, Skip)->target;
+ return target ? Texts("skip ", Text$from_str(target)) : Text("skip");
+ }
+ /*inline*/ case Min:
+ /*inline*/ case Max: {
+ Text_t lhs = fmt_inline(ast->tag == Min ? Match(ast, Min)->lhs : Match(ast, Max)->lhs, comments);
+ Text_t rhs = fmt_inline(ast->tag == Min ? Match(ast, Min)->rhs : Match(ast, Max)->rhs, comments);
+ ast_t *key = ast->tag == Min ? Match(ast, Min)->key : Match(ast, Max)->key;
+ return Texts(lhs, key ? fmt_inline(key, comments) : (ast->tag == Min ? Text(" _min_ ") : Text(" _max_ ")), rhs);
+ }
+ /*inline*/ case Reduction: {
+ DeclareMatch(reduction, ast, Reduction);
+ if (reduction->key) {
+ return Texts("(", fmt_inline(reduction->key, comments), ": ", fmt_inline(reduction->iter, comments));
+ } else {
+ return Texts("(", binop_operator(reduction->op), ": ", fmt_inline(reduction->iter, comments));
+ }
+ }
+ /*inline*/ case None:
+ return Text("none");
+ /*inline*/ case Bool:
+ return Match(ast, Bool)->b ? Text("yes") : Text("no");
+ /*inline*/ case Int: {
+ OptionalText_t source = ast_source(ast);
+ return source.length > 0 ? source : Text$from_str(Match(ast, Int)->str);
+ }
+ /*inline*/ case Num: {
+ OptionalText_t source = ast_source(ast);
+ return source.length > 0 ? source : Text$from_str(String(Match(ast, Num)->n));
+ }
+ /*inline*/ case Var:
+ return Text$from_str(Match(ast, Var)->name);
+ /*inline*/ case FunctionCall: {
+ DeclareMatch(call, ast, FunctionCall);
+ return Texts(fmt_inline(call->fn, comments), "(", must(format_inline_args(call->args, comments)), ")");
+ }
+ /*inline*/ case MethodCall: {
+ DeclareMatch(call, ast, MethodCall);
+ Text_t self = fmt_inline(call->self, comments);
+ if (is_binary_operation(call->self) || call->self->tag == Negative || call->self->tag == Not)
+ self = parenthesize(self, EMPTY_TEXT);
+ return Texts(self, ".", Text$from_str(call->name), "(", must(format_inline_args(call->args, comments)), ")");
+ }
+ /*inline*/ case BINOP_CASES: {
+ binary_operands_t operands = BINARY_OPERANDS(ast);
+ const char *op = binop_operator(ast->tag);
+
+ Text_t lhs = fmt_inline(operands.lhs, comments);
+ Text_t rhs = fmt_inline(operands.rhs, comments);
+
+ if (is_update_assignment(ast)) {
+ return Texts(lhs, " ", Text$from_str(op), " ", rhs);
+ }
+
+ if (is_binary_operation(operands.lhs) && op_tightness[operands.lhs->tag] < op_tightness[ast->tag])
+ lhs = parenthesize(lhs, EMPTY_TEXT);
+ if (is_binary_operation(operands.rhs) && op_tightness[operands.rhs->tag] < op_tightness[ast->tag])
+ rhs = parenthesize(rhs, EMPTY_TEXT);
+
+ Text_t space = op_tightness[ast->tag] >= op_tightness[Multiply] ? EMPTY_TEXT : Text(" ");
+ return Texts(lhs, space, Text$from_str(binop_operator(ast->tag)), space, rhs);
+ }
+ /*inline*/ case Deserialize: {
+ DeclareMatch(deserialize, ast, Deserialize);
+ return Texts("deserialize(", fmt_inline(deserialize->value, comments), " -> ", format_type(deserialize->type),
+ ")");
+ }
+ /*inline*/ case Use: {
+ DeclareMatch(use, ast, Use);
+ // struct {
+ // ast_t *var;
+ // const char *path;
+ // enum { USE_LOCAL, USE_MODULE, USE_SHARED_OBJECT, USE_HEADER, USE_C_CODE, USE_ASM } what;
+ // } Use;
+ return Texts("use ", use->path);
+ }
+ /*inline*/ case ExplicitlyTyped:
+ fail("Explicitly typed AST nodes are only meant to be used internally.");
+ default: {
+ fail("Formatting not implemented for: ", ast_to_sexp(ast));
+ }
+ }
+}
+
+static int64_t trailing_line_len(Text_t text) {
+ TextIter_t state = NEW_TEXT_ITER_STATE(text);
+ int64_t len = 0;
+ for (int64_t i = text.length - 1; i >= 0; i--) {
+ int32_t g = Text$get_grapheme_fast(&state, i);
+ if (g == '\n' || g == '\r') break;
+ len += 1;
+ }
+ return len;
+}
+
+Text_t format_code(ast_t *ast, Table_t comments, Text_t indent) {
+ OptionalText_t inlined = format_inline_code(ast, comments);
+ bool inlined_fits = (inlined.length >= 0 && indent.length + inlined.length <= MAX_WIDTH);
+
+ switch (ast->tag) {
+ /*multiline*/ case Unknown:
+ fail("Invalid AST");
+ /*multiline*/ case Block: {
+ Text_t code = EMPTY_TEXT;
+ bool gap_before_comment = false;
+ const char *comment_pos = ast->start;
+ for (ast_list_t *stmt = Match(ast, Block)->statements; stmt; stmt = stmt->next) {
+ for (OptionalText_t comment;
+ (comment = next_comment(comments, &comment_pos, stmt->ast->start)).length > 0;) {
+ if (gap_before_comment) {
+ add_line(&code, Text(""), indent);
+ gap_before_comment = false;
+ }
+ add_line(&code, Text$trim(comment, Text(" \t\r\n"), false, true), indent);
+ }
+
+ if (stmt->ast->tag == Block) {
+ add_line(&code,
+ Texts("do\n", indent, single_indent, fmt(stmt->ast, comments, Texts(indent, single_indent))),
+ indent);
+ } else {
+ add_line(&code, fmt(stmt->ast, comments, indent), indent);
+ }
+ comment_pos = stmt->ast->end;
+
+ if (stmt->next) {
+ int suggested_blanks = suggested_blank_lines(stmt->ast, stmt->next->ast);
+ for (int blanks = suggested_blanks; blanks > 0; blanks--)
+ add_line(&code, Text(""), indent);
+ gap_before_comment = (suggested_blanks == 0);
+ } else gap_before_comment = true;
+ }
+
+ for (OptionalText_t comment; (comment = next_comment(comments, &comment_pos, ast->end)).length > 0;) {
+ if (gap_before_comment) {
+ add_line(&code, Text(""), indent);
+ gap_before_comment = false;
+ }
+ add_line(&code, Text$trim(comment, Text(" \t\r\n"), false, true), indent);
+ }
+ return code;
+ }
+ /*multiline*/ case If: {
+ DeclareMatch(if_, ast, If);
+ Text_t code = if_->condition->tag == Not
+ ? Texts("unless ", fmt(Match(if_->condition, Not)->value, comments, indent))
+ : Texts("if ", fmt(if_->condition, comments, indent));
+
+ code = Texts(code, "\n", indent, single_indent, fmt(if_->body, comments, Texts(indent, single_indent)));
+ if (if_->else_body) {
+ if (if_->else_body->tag != If) {
+ code = Texts(code, "\n", indent, "else\n", indent, single_indent,
+ fmt(if_->else_body, comments, Texts(indent, single_indent)));
+ } else {
+ code = Texts(code, "\n", indent, "else ", fmt(if_->else_body, comments, indent));
+ }
+ }
+ return code;
+ }
+ /*multiline*/ case When: {
+ DeclareMatch(when, ast, When);
+ Text_t code = Texts("when ", fmt(when->subject, comments, indent));
+ for (when_clause_t *clause = when->clauses; clause; clause = clause->next) {
+ code = Texts(code, "\n", indent, "is ", fmt(clause->pattern, comments, indent));
+ while (clause->next && clause->next->body == clause->body) {
+ clause = clause->next;
+ code = Texts(code, ", ", fmt(clause->pattern, comments, indent));
+ }
+ code = Texts(code, format_namespace(clause->body, comments, indent));
+ }
+ if (when->else_body)
+ code = Texts(code, "\n", indent, "else", format_namespace(when->else_body, comments, indent));
+ return code;
+ }
+ /*multiline*/ case Repeat: {
+ return Texts("repeat\n", indent, single_indent,
+ fmt(Match(ast, Repeat)->body, comments, Texts(indent, single_indent)));
+ }
+ /*multiline*/ case While: {
+ DeclareMatch(loop, ast, While);
+ return Texts("while ", fmt(loop->condition, comments, indent), "\n", indent, single_indent,
+ fmt(loop->body, comments, Texts(indent, single_indent)));
+ }
+ /*multiline*/ case For: {
+ DeclareMatch(loop, ast, For);
+ Text_t code = Text("for ");
+ for (ast_list_t *var = loop->vars; var; var = var->next) {
+ code = Texts(code, fmt(var->ast, comments, indent));
+ if (var->next) code = Texts(code, ", ");
+ }
+ code = Texts(code, " in ", fmt(loop->iter, comments, indent), format_namespace(loop->body, comments, indent));
+ if (loop->empty) code = Texts(code, "\n", indent, "else", format_namespace(loop->empty, comments, indent));
+ return code;
+ }
+ /*multiline*/ case Comprehension: {
+ if (inlined_fits) return inlined;
+ DeclareMatch(comp, ast, Comprehension);
+ Text_t code = Texts("(", fmt(comp->expr, comments, indent));
+ if (code.length >= MAX_WIDTH) code = Texts(code, "\n", indent, "for ");
+ else code = Texts(code, " for ");
+
+ for (ast_list_t *var = comp->vars; var; var = var->next) {
+ code = Texts(code, fmt(var->ast, comments, indent));
+ if (var->next) code = Texts(code, ", ");
+ }
+
+ code = Texts(code, " in ", fmt(comp->iter, comments, indent));
+
+ if (comp->filter) {
+ if (code.length >= MAX_WIDTH) code = Texts(code, "\n", indent, "if ");
+ else code = Texts(code, " if ");
+ code = Texts(code, fmt(comp->filter, comments, indent));
+ }
+ return code;
+ }
+ /*multiline*/ case FunctionDef: {
+ DeclareMatch(func, ast, FunctionDef);
+ Text_t code = Texts("func ", fmt(func->name, comments, indent), "(", format_args(func->args, comments, indent));
+ if (func->ret_type) code = Texts(code, func->args ? Text(" -> ") : Text("-> "), format_type(func->ret_type));
+ if (func->cache) code = Texts(code, "; cache=", fmt(func->cache, comments, indent));
+ if (func->is_inline) code = Texts(code, "; inline");
+ code = Texts(code, Text$has(code, Text("\n")) ? Texts("\n", indent, ")") : Text(")"), "\n", indent,
+ single_indent, fmt(func->body, comments, Texts(indent, single_indent)));
+ return Texts(code);
+ }
+ /*multiline*/ case Lambda: {
+ if (inlined_fits) return inlined;
+ DeclareMatch(lambda, ast, Lambda);
+ Text_t code = Texts("func(", format_args(lambda->args, comments, indent));
+ if (lambda->ret_type)
+ code = Texts(code, lambda->args ? Text(" -> ") : Text("-> "), format_type(lambda->ret_type));
+ code = Texts(code, Text$has(code, Text("\n")) ? Texts("\n", indent, ")") : Text(")"), "\n", indent,
+ single_indent, fmt(lambda->body, comments, Texts(indent, single_indent)));
+ return Texts(code);
+ }
+ /*multiline*/ case ConvertDef: {
+ DeclareMatch(convert, ast, ConvertDef);
+ Text_t code = Texts("convert (", format_args(convert->args, comments, indent));
+ if (convert->ret_type)
+ code = Texts(code, convert->args ? Text(" -> ") : Text("-> "), format_type(convert->ret_type));
+ if (convert->cache) code = Texts(code, "; cache=", fmt(convert->cache, comments, indent));
+ if (convert->is_inline) code = Texts(code, "; inline");
+ code = Texts(code, Text$has(code, Text("\n")) ? Texts("\n", indent, ")") : Text(")"), "\n", indent,
+ single_indent, fmt(convert->body, comments, Texts(indent, single_indent)));
+ return Texts(code);
+ }
+ /*multiline*/ case StructDef: {
+ DeclareMatch(def, ast, StructDef);
+ Text_t args = format_args(def->fields, comments, indent);
+ Text_t code = Texts("struct ", Text$from_str(def->name), "(", args);
+ if (def->secret) code = Texts(code, "; secret");
+ if (def->external) code = Texts(code, "; external");
+ if (def->opaque) code = Texts(code, "; opaque");
+ code = Texts(code, Text$has(code, Text("\n")) ? Texts("\n", indent, ")") : Text(")"));
+ return Texts(code, format_namespace(def->namespace, comments, indent));
+ }
+ /*multiline*/ case EnumDef: {
+ DeclareMatch(def, ast, EnumDef);
+ Text_t code = Texts("enum ", Text$from_str(def->name), "(", format_tags(def->tags, comments, indent));
+ return Texts(code, Text$has(code, Text("\n")) ? Texts("\n", indent, ")") : Text(")"),
+ format_namespace(def->namespace, comments, indent));
+ }
+ /*multiline*/ case LangDef: {
+ DeclareMatch(def, ast, LangDef);
+ return Texts("lang ", Text$from_str(def->name), format_namespace(def->namespace, comments, indent));
+ }
+ /*multiline*/ case Extend: {
+ DeclareMatch(extend, ast, Extend);
+ return Texts("lang ", Text$from_str(extend->name), format_namespace(extend->body, comments, indent));
+ }
+ /*multiline*/ case Extern: {
+ DeclareMatch(ext, ast, Extern);
+ return Texts("extern ", Text$from_str(ext->name), " : ", format_type(ext->type));
+ }
+ /*multiline*/ case Defer:
+ return Texts("defer ", format_namespace(Match(ast, Defer)->body, comments, indent));
+ /*multiline*/ case List:
+ /*multiline*/ case Set: {
+ if (inlined_fits) return inlined;
+ ast_list_t *items = ast->tag == List ? Match(ast, List)->items : Match(ast, Set)->items;
+ Text_t code = ast->tag == List ? Text("[") : Text("|");
+ const char *comment_pos = ast->start;
+ for (ast_list_t *item = items; item; item = item->next) {
+ for (OptionalText_t comment;
+ (comment = next_comment(comments, &comment_pos, item->ast->start)).length > 0;) {
+ add_line(&code, Text$trim(comment, Text(" \t\r\n"), false, true), Texts(indent, single_indent));
+ }
+ Text_t item_text = fmt(item->ast, comments, Texts(indent, single_indent));
+ if (Text$ends_with(code, Text(","), NULL)) {
+ if (!Text$has(item_text, Text("\n")) && trailing_line_len(code) + 1 + item_text.length + 1 <= MAX_WIDTH)
+ code = Texts(code, " ", item_text, ",");
+ else code = Texts(code, "\n", indent, single_indent, item_text, ",");
+ } else {
+ add_line(&code, Texts(item_text, ","), Texts(indent, single_indent));
+ }
+ }
+ for (OptionalText_t comment; (comment = next_comment(comments, &comment_pos, ast->end)).length > 0;) {
+ add_line(&code, Text$trim(comment, Text(" \t\r\n"), false, true), Texts(indent, single_indent));
+ }
+ return ast->tag == List ? Texts(code, "\n", indent, "]") : Texts(code, "\n", indent, "|");
+ }
+ /*multiline*/ case Table: {
+ if (inlined_fits) return inlined;
+ DeclareMatch(table, ast, Table);
+ Text_t code = Texts("{");
+ const char *comment_pos = ast->start;
+ for (ast_list_t *entry = table->entries; entry; entry = entry->next) {
+ for (OptionalText_t comment;
+ (comment = next_comment(comments, &comment_pos, entry->ast->start)).length > 0;) {
+ add_line(&code, Text$trim(comment, Text(" \t\r\n"), false, true), Texts(indent, single_indent));
+ }
+
+ Text_t entry_text = fmt(entry->ast, comments, Texts(indent, single_indent));
+ if (Text$ends_with(code, Text(","), NULL)) {
+ if (!Text$has(entry_text, Text("\n"))
+ && trailing_line_len(code) + 1 + entry_text.length + 1 <= MAX_WIDTH)
+ code = Texts(code, " ", entry_text, ",");
+ else code = Texts(code, "\n", indent, single_indent, entry_text, ",");
+ } else {
+ add_line(&code, Texts(entry_text, ","), Texts(indent, single_indent));
+ }
+
+ add_line(&code, Texts(entry_text, ","), Texts(indent, single_indent));
+ }
+ for (OptionalText_t comment; (comment = next_comment(comments, &comment_pos, ast->end)).length > 0;) {
+ add_line(&code, Text$trim(comment, Text(" \t\r\n"), false, true), Texts(indent, single_indent));
+ }
+
+ if (table->fallback)
+ code = Texts(code, ";\n", indent, single_indent, "fallback=", fmt(table->fallback, comments, indent));
+
+ if (table->default_value)
+ code = Texts(code, ";\n", indent, single_indent, "default=", fmt(table->default_value, comments, indent));
+
+ return Texts(code, "\n", indent, "}");
+ }
+ /*multiline*/ case TableEntry: {
+ if (inlined_fits) return inlined;
+ DeclareMatch(entry, ast, TableEntry);
+ return Texts(fmt(entry->key, comments, indent), "=", fmt(entry->value, comments, indent));
+ }
+ /*multiline*/ case Declare: {
+ if (inlined_fits) return inlined;
+ DeclareMatch(decl, ast, Declare);
+ Text_t code = fmt(decl->var, comments, indent);
+ if (decl->type) code = Texts(code, " : ", format_type(decl->type));
+ if (decl->value)
+ code = Texts(code, decl->type ? Text(" = ") : Text(" := "), fmt(decl->value, comments, indent));
+ return code;
+ }
+ /*multiline*/ case Assign: {
+ if (inlined_fits) return inlined;
+ DeclareMatch(assign, ast, Assign);
+ Text_t code = EMPTY_TEXT;
+ for (ast_list_t *target = assign->targets; target; target = target->next) {
+ code = Texts(code, fmt(target->ast, comments, indent));
+ if (target->next) code = Texts(code, ", ");
+ }
+ code = Texts(code, " = ");
+ for (ast_list_t *value = assign->values; value; value = value->next) {
+ code = Texts(code, fmt(value->ast, comments, indent));
+ if (value->next) code = Texts(code, ", ");
+ }
+ return code;
+ }
+ /*multiline*/ case Pass:
+ return Text("pass");
+ /*multiline*/ case Return: {
+ if (inlined_fits) return inlined;
+ ast_t *value = Match(ast, Return)->value;
+ return value ? Texts("return ", fmt(value, comments, indent)) : Text("return");
+ }
+ /*inline*/ case Not: {
+ if (inlined_fits) return inlined;
+ ast_t *val = Match(ast, Not)->value;
+ if (is_binary_operation(val)) return Texts("not ", termify(val, comments, indent));
+ else return Texts("not ", fmt(val, comments, indent));
+ }
+ /*inline*/ case Negative: {
+ if (inlined_fits) return inlined;
+ ast_t *val = Match(ast, Negative)->value;
+ if (is_binary_operation(val)) return Texts("-", termify(val, comments, indent));
+ else return Texts("-", fmt(val, comments, indent));
+ }
+ /*multiline*/ case HeapAllocate: {
+ if (inlined_fits) return inlined;
+ ast_t *val = Match(ast, HeapAllocate)->value;
+ return Texts("@", termify(val, comments, indent), "");
+ }
+ /*multiline*/ case StackReference: {
+ if (inlined_fits) return inlined;
+ ast_t *val = Match(ast, StackReference)->value;
+ return Texts("&(", termify(val, comments, indent), ")");
+ }
+ /*multiline*/ case Optional: {
+ if (inlined_fits) return inlined;
+ ast_t *val = Match(ast, Optional)->value;
+ return Texts(termify(val, comments, indent), "?");
+ }
+ /*multiline*/ case NonOptional: {
+ if (inlined_fits) return inlined;
+ ast_t *val = Match(ast, NonOptional)->value;
+ return Texts(termify(val, comments, indent), "!");
+ }
+ /*multiline*/ case FieldAccess: {
+ if (inlined_fits) return inlined;
+ DeclareMatch(access, ast, FieldAccess);
+ return Texts(termify(access->fielded, comments, indent), ".", Text$from_str(access->field));
+ }
+ /*multiline*/ case Index: {
+ if (inlined_fits) return inlined;
+ DeclareMatch(index, ast, Index);
+ if (index->index)
+ return Texts(termify(index->indexed, comments, indent), "[", fmt(index->index, comments, indent), "]");
+ else return Texts(termify(index->indexed, comments, indent), "[]");
+ }
+ /*multiline*/ case TextJoin: {
+ if (inlined_fits) return inlined;
+
+ text_opts_t opts = choose_text_options(Match(ast, TextJoin)->children);
+ Text_t ret = format_text(opts, Match(ast, TextJoin)->children, comments, indent);
+ const char *lang = Match(ast, TextJoin)->lang;
+ return lang ? Texts("$", Text$from_str(lang), ret) : ret;
+ }
+ /*multiline*/ case InlineCCode: {
+ DeclareMatch(c_code, ast, InlineCCode);
+ if (inlined_fits && c_code->type != NULL) return inlined;
+ Text_t code = c_code->type_ast ? Texts("C_code:", format_type(c_code->type_ast)) : Text("C_code");
+ text_opts_t opts = {.quote = Text("`"), .unquote = Text("`"), .interp = Text("@")};
+ return Texts(code, format_text(opts, Match(ast, InlineCCode)->chunks, comments, indent));
+ }
+ /*multiline*/ case TextLiteral: { fail("Something went wrong, we shouldn't be formatting text literals directly"); }
+ /*multiline*/ case Path: {
+ assert(inlined.length > 0);
+ return inlined;
+ }
+ /*multiline*/ case Min:
+ /*multiline*/ case Max: {
+ if (inlined_fits) return inlined;
+ Text_t lhs = termify(ast->tag == Min ? Match(ast, Min)->lhs : Match(ast, Max)->lhs, comments, indent);
+ Text_t rhs = termify(ast->tag == Min ? Match(ast, Min)->rhs : Match(ast, Max)->rhs, comments, indent);
+ ast_t *key = ast->tag == Min ? Match(ast, Min)->key : Match(ast, Max)->key;
+ Text_t op = key ? fmt(key, comments, indent) : (ast->tag == Min ? Text("_min_") : Text("_max_"));
+ return Texts(lhs, " ", op, " ", rhs);
+ }
+ /*multiline*/ case Reduction: {
+ if (inlined_fits) return inlined;
+ DeclareMatch(reduction, ast, Reduction);
+ if (reduction->key) {
+ return Texts("(", fmt(reduction->key, comments, Texts(indent, single_indent)), ": ",
+ fmt(reduction->iter, comments, Texts(indent, single_indent)));
+ } else {
+ return Texts("(", binop_operator(reduction->op), ": ",
+ fmt(reduction->iter, comments, Texts(indent, single_indent)));
+ }
+ }
+ /*multiline*/ case Stop:
+ /*multiline*/ case Skip:
+ /*multiline*/ case None:
+ /*multiline*/ case Bool:
+ /*multiline*/ case Int:
+ /*multiline*/ case Num:
+ /*multiline*/ case Var: {
+ assert(inlined.length >= 0);
+ return inlined;
+ }
+ /*multiline*/ case FunctionCall: {
+ if (inlined_fits) return inlined;
+ DeclareMatch(call, ast, FunctionCall);
+ Text_t args = format_args(call->args, comments, indent);
+ return Texts(fmt(call->fn, comments, indent), "(", args,
+ Text$has(args, Text("\n")) ? Texts("\n", indent) : EMPTY_TEXT, ")");
+ }
+ /*multiline*/ case MethodCall: {
+ if (inlined_fits) return inlined;
+ DeclareMatch(call, ast, MethodCall);
+ Text_t args = format_args(call->args, comments, indent);
+ return Texts(termify(call->self, comments, indent), ".", Text$from_str(call->name), "(", args,
+ Text$has(args, Text("\n")) ? Texts("\n", indent) : EMPTY_TEXT, ")");
+ }
+ /*multiline*/ case DocTest: {
+ DeclareMatch(test, ast, DocTest);
+ Text_t expr = fmt(test->expr, comments, indent);
+ Text_t code = Texts(">> ", expr);
+ if (test->expected) {
+ Text_t expected = fmt(test->expected, comments, indent);
+ code = Texts(code, "\n", indent, "= ", expected);
+ }
+ return code;
+ }
+ /*multiline*/ case Assert: {
+ DeclareMatch(assert, ast, Assert);
+ Text_t expr = fmt(assert->expr, comments, indent);
+ if (!assert->message) return Texts("assert ", expr);
+ Text_t message = fmt(assert->message, comments, indent);
+ return Texts("assert ", expr, ", ", message);
+ }
+ /*multiline*/ case BINOP_CASES: {
+ if (inlined_fits) return inlined;
+ binary_operands_t operands = BINARY_OPERANDS(ast);
+ const char *op = binop_operator(ast->tag);
+ Text_t lhs = fmt(operands.lhs, comments, indent);
+ Text_t rhs = fmt(operands.rhs, comments, indent);
+
+ if (is_update_assignment(ast)) {
+ return Texts(lhs, " ", Text$from_str(op), " ", rhs);
+ }
+
+ if (is_binary_operation(operands.lhs) && op_tightness[operands.lhs->tag] < op_tightness[ast->tag])
+ lhs = parenthesize(lhs, indent);
+ if (is_binary_operation(operands.rhs) && op_tightness[operands.rhs->tag] < op_tightness[ast->tag])
+ rhs = parenthesize(rhs, indent);
+
+ Text_t space = op_tightness[ast->tag] >= op_tightness[Multiply] ? EMPTY_TEXT : Text(" ");
+ return Texts(lhs, space, Text$from_str(binop_operator(ast->tag)), space, rhs);
+ }
+ /*multiline*/ case Deserialize: {
+ if (inlined_fits) return inlined;
+ DeclareMatch(deserialize, ast, Deserialize);
+ return Texts("deserialize(", fmt(deserialize->value, comments, indent), " -> ", format_type(deserialize->type),
+ ")");
+ }
+ /*multiline*/ case Use: {
+ assert(inlined.length > 0);
+ return inlined;
+ }
+ /*multiline*/ case ExplicitlyTyped:
+ fail("Explicitly typed AST nodes are only meant to be used internally.");
+ default: {
+ if (inlined_fits) return inlined;
+ fail("Formatting not implemented for: ", ast_to_sexp(ast));
+ }
+ }
+}
+
+Text_t format_file(const char *path) {
+ file_t *file = load_file(path);
+ if (!file) return EMPTY_TEXT;
+
+ jmp_buf on_err;
+ if (setjmp(on_err) != 0) {
+ return Text$from_str(file->text);
+ }
+ parse_ctx_t ctx = {
+ .file = file,
+ .on_err = &on_err,
+ .comments = {},
+ };
+
+ const char *pos = file->text;
+ if (match(&pos, "#!")) // shebang
+ some_not(&pos, "\r\n");
+
+ whitespace(&ctx, &pos);
+ ast_t *ast = parse_file_body(&ctx, pos);
+ if (!ast) return Text$from_str(file->text);
+ pos = ast->end;
+ whitespace(&ctx, &pos);
+ if (pos < file->text + file->len && *pos != '\0') {
+ return Text$from_str(file->text);
+ }
+
+ const char *fmt_pos = file->text;
+ Text_t code = EMPTY_TEXT;
+ for (OptionalText_t comment; (comment = next_comment(ctx.comments, &fmt_pos, ast->start)).length > 0;) {
+ code = Texts(code, Text$trim(comment, Text(" \t\r\n"), false, true), "\n");
+ }
+ code = Texts(code, fmt(ast, ctx.comments, EMPTY_TEXT));
+ for (OptionalText_t comment; (comment = next_comment(ctx.comments, &fmt_pos, ast->start)).length > 0;) {
+ code = Texts(code, Text$trim(comment, Text(" \t\r\n"), false, true), "\n");
+ }
+ return code;
+}
diff --git a/src/formatter/formatter.h b/src/formatter/formatter.h
new file mode 100644
index 00000000..a8f9013a
--- /dev/null
+++ b/src/formatter/formatter.h
@@ -0,0 +1,13 @@
+// This code defines functions for transforming ASTs back into Tomo source text
+
+#pragma once
+
+#include <stdbool.h>
+
+#include "../ast.h"
+#include "../stdlib/datatypes.h"
+
+Text_t format_file(const char *path);
+Text_t format_code(ast_t *ast, Table_t comments, Text_t indentation);
+Text_t format_namespace(ast_t *namespace, Table_t comments, Text_t indent);
+OptionalText_t format_inline_code(ast_t *ast, Table_t comments);
diff --git a/src/formatter/types.c b/src/formatter/types.c
new file mode 100644
index 00000000..e52faf70
--- /dev/null
+++ b/src/formatter/types.c
@@ -0,0 +1,45 @@
+// Logic for formatting types
+
+#include "../ast.h"
+#include "../stdlib/datatypes.h"
+#include "../stdlib/stdlib.h"
+#include "../stdlib/text.h"
+#include "args.h"
+#include "formatter.h"
+
+Text_t format_type(type_ast_t *type) {
+ switch (type->tag) {
+ case VarTypeAST: return Text$from_str(Match(type, VarTypeAST)->name);
+ case PointerTypeAST: {
+ DeclareMatch(ptr, type, PointerTypeAST);
+ return Texts(ptr->is_stack ? Text("&") : Text("@"), format_type(ptr->pointed));
+ }
+ case ListTypeAST: {
+ return Texts("[", format_type(Match(type, ListTypeAST)->item), "]");
+ }
+ case SetTypeAST: {
+ return Texts("|", format_type(Match(type, SetTypeAST)->item), "|");
+ }
+ case TableTypeAST: {
+ DeclareMatch(table, type, TableTypeAST);
+ Text_t code = Texts("{", format_type(table->key), "=", format_type(table->value));
+ if (table->default_value) {
+ OptionalText_t val = format_inline_code(table->default_value, (Table_t){});
+ assert(val.length >= 0);
+ code = Texts(code, "; default=", val);
+ }
+ return Texts(code, "}");
+ }
+ case FunctionTypeAST: {
+ DeclareMatch(func, type, FunctionTypeAST);
+ Text_t code = Texts("func(", format_inline_args(func->args, (Table_t){}));
+ if (func->ret) code = Texts(code, func->args ? Text(" -> ") : Text("-> "), format_type(func->ret));
+ return Texts(code, ")");
+ }
+ case OptionalTypeAST: {
+ return Texts(format_type(Match(type, OptionalTypeAST)->type), "?");
+ }
+ case UnknownTypeAST:
+ default: fail("Invalid Type AST");
+ }
+}
diff --git a/src/formatter/types.h b/src/formatter/types.h
new file mode 100644
index 00000000..2571f880
--- /dev/null
+++ b/src/formatter/types.h
@@ -0,0 +1,8 @@
+// Logic for formatting types
+
+#pragma once
+
+#include "../ast.h"
+#include "../stdlib/datatypes.h"
+
+Text_t format_type(type_ast_t *type);
diff --git a/src/formatter/utils.c b/src/formatter/utils.c
new file mode 100644
index 00000000..80445ec3
--- /dev/null
+++ b/src/formatter/utils.c
@@ -0,0 +1,154 @@
+// This file defines utility functions for autoformatting code
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "../ast.h"
+#include "../parse/context.h"
+#include "../stdlib/datatypes.h"
+#include "../stdlib/optionals.h"
+#include "../stdlib/tables.h"
+#include "../stdlib/text.h"
+#include "formatter.h"
+
+const Text_t single_indent = Text(" ");
+
+void add_line(Text_t *code, Text_t line, Text_t indent) {
+ if (code->length == 0) {
+ *code = line;
+ } else {
+ if (line.length > 0) *code = Texts(*code, "\n", indent, line);
+ else *code = Texts(*code, "\n");
+ }
+}
+
+OptionalText_t next_comment(Table_t comments, const char **pos, const char *end) {
+ for (const char *p = *pos; p < end; p++) {
+ const char **comment_end = Table$get(comments, &p, parse_comments_info);
+ if (comment_end) {
+ *pos = *comment_end;
+ return Text$from_strn(p, (int64_t)(*comment_end - p));
+ }
+ }
+ return NONE_TEXT;
+}
+
+bool range_has_comment(const char *start, const char *end, Table_t comments) {
+ OptionalText_t comment = next_comment(comments, &start, end);
+ return (comment.length >= 0);
+}
+
+CONSTFUNC int suggested_blank_lines(ast_t *first, ast_t *second) {
+ if (second == NULL) return 0;
+
+ for (;;) {
+ if (first->tag == Declare && Match(first, Declare)->value) {
+ first = Match(first, Declare)->value;
+ } else if (first->tag == DocTest && Match(first, DocTest)->expr && Match(first, DocTest)->expected == NULL) {
+ first = Match(first, DocTest)->expr;
+ } else break;
+ }
+
+ for (;;) {
+ if (second->tag == Declare && Match(second, Declare)->value) {
+ second = Match(second, Declare)->value;
+ } else if (second->tag == DocTest && Match(second, DocTest)->expr && Match(second, DocTest)->expected == NULL) {
+ second = Match(second, DocTest)->expr;
+ } else break;
+ }
+
+ switch (first->tag) {
+ case If:
+ case When:
+ case Repeat:
+ case While:
+ case For:
+ case Block:
+ case Defer:
+ case ConvertDef:
+ case FunctionDef:
+ case Lambda:
+ case StructDef:
+ case EnumDef:
+ case LangDef:
+ case Extend: return 1;
+ case Use: {
+ if (second->tag != Use) return 1;
+ break;
+ }
+ case Declare: {
+ DeclareMatch(decl, first, Declare);
+ if (decl->value) return suggested_blank_lines(decl->value, second);
+ break;
+ }
+ case Assign: {
+ DeclareMatch(assign, first, Assign);
+ for (ast_list_t *val = assign->values; val; val = val->next) {
+ if (suggested_blank_lines(val->ast, second) > 0) return 1;
+ }
+ break;
+ }
+ default: break;
+ }
+
+ switch (second->tag) {
+ case If:
+ case When:
+ case Repeat:
+ case While:
+ case For:
+ case Block:
+ case Defer:
+ case ConvertDef:
+ case FunctionDef:
+ case Lambda:
+ case StructDef:
+ case EnumDef:
+ case LangDef:
+ case Extend: return 1;
+ default: break;
+ }
+ return 0;
+}
+
+Text_t indent_code(Text_t code) {
+ if (code.length <= 0) return code;
+ return Texts(single_indent, Text$replace(code, Text("\n"), Texts("\n", single_indent)));
+}
+
+Text_t parenthesize(Text_t code, Text_t indent) {
+ if (Text$has(code, Text("\n"))) return Texts("(\n", indent, indent_code(code), "\n", indent, ")");
+ else return Texts("(", code, ")");
+}
+
+CONSTFUNC ast_t *unwrap_block(ast_t *ast) {
+ if (ast == NULL) return NULL;
+ while (ast->tag == Block && Match(ast, Block)->statements && Match(ast, Block)->statements->next == NULL) {
+ ast = Match(ast, Block)->statements->ast;
+ }
+ if (ast->tag == Block && Match(ast, Block)->statements == NULL) return NULL;
+ return ast;
+}
+
+OptionalText_t termify_inline(ast_t *ast, Table_t comments) {
+ if (range_has_comment(ast->start, ast->end, comments)) return NONE_TEXT;
+ switch (ast->tag) {
+ case BINOP_CASES:
+ case Not:
+ case Negative:
+ case HeapAllocate:
+ case StackReference: return parenthesize(format_inline_code(ast, comments), EMPTY_TEXT);
+ default: return format_inline_code(ast, comments);
+ }
+}
+
+Text_t termify(ast_t *ast, Table_t comments, Text_t indent) {
+ switch (ast->tag) {
+ case BINOP_CASES:
+ case Not:
+ case Negative:
+ case HeapAllocate:
+ case StackReference: return parenthesize(format_code(ast, comments, indent), indent);
+ default: return format_inline_code(ast, comments);
+ }
+}
diff --git a/src/formatter/utils.h b/src/formatter/utils.h
new file mode 100644
index 00000000..880da0a9
--- /dev/null
+++ b/src/formatter/utils.h
@@ -0,0 +1,30 @@
+// This file defines utility functions for autoformatting code
+
+#pragma once
+
+#include <stdbool.h>
+
+#include "../ast.h"
+#include "../stdlib/datatypes.h"
+#include "../stdlib/optionals.h"
+
+#define MAX_WIDTH 100
+
+#define must(expr) \
+ ({ \
+ OptionalText_t _expr = expr; \
+ if (_expr.length < 0) return NONE_TEXT; \
+ (Text_t) _expr; \
+ })
+
+extern const Text_t single_indent;
+
+void add_line(Text_t *code, Text_t line, Text_t indent);
+OptionalText_t next_comment(Table_t comments, const char **pos, const char *end);
+bool range_has_comment(const char *start, const char *end, Table_t comments);
+CONSTFUNC int suggested_blank_lines(ast_t *first, ast_t *second);
+Text_t indent_code(Text_t code);
+Text_t parenthesize(Text_t code, Text_t indent);
+CONSTFUNC ast_t *unwrap_block(ast_t *ast);
+OptionalText_t termify_inline(ast_t *ast, Table_t comments);
+Text_t termify(ast_t *ast, Table_t comments, Text_t indent);
diff --git a/src/parse/binops.c b/src/parse/binops.c
index 7ccf1379..4676b249 100644
--- a/src/parse/binops.c
+++ b/src/parse/binops.c
@@ -9,33 +9,6 @@
#include "suffixes.h"
#include "utils.h"
-int op_tightness[] = {
- [Power] = 9,
- [Multiply] = 8,
- [Divide] = 8,
- [Mod] = 8,
- [Mod1] = 8,
- [Plus] = 7,
- [Minus] = 7,
- [Concat] = 6,
- [LeftShift] = 5,
- [RightShift] = 5,
- [UnsignedLeftShift] = 5,
- [UnsignedRightShift] = 5,
- [Min] = 4,
- [Max] = 4,
- [Equals] = 3,
- [NotEquals] = 3,
- [LessThan] = 2,
- [LessThanOrEquals] = 2,
- [GreaterThan] = 2,
- [GreaterThanOrEquals] = 2,
- [Compare] = 2,
- [And] = 1,
- [Or] = 1,
- [Xor] = 1,
-};
-
ast_e match_binary_operator(const char **pos) {
switch (**pos) {
case '+': {
@@ -94,7 +67,7 @@ ast_t *parse_infix_expr(parse_ctx_t *ctx, const char *pos, int min_tightness) {
for (ast_e op; (op = match_binary_operator(&pos)) != Unknown && op_tightness[op] >= min_tightness; spaces(&pos)) {
ast_t *key = NULL;
if (op == Min || op == Max) {
- key = NewAST(ctx->file, pos, pos, Var, .name = "$");
+ key = NewAST(ctx->file, pos, pos, Var, .name = (op == Min ? "_min_" : "_max_"));
for (bool progress = true; progress;) {
ast_t *new_term;
progress =
@@ -108,7 +81,7 @@ ast_t *parse_infix_expr(parse_ctx_t *ctx, const char *pos, int min_tightness) {
else if (key) pos = key->end;
}
- whitespace(&pos);
+ whitespace(ctx, &pos);
if (get_line_number(ctx->file, pos) != starting_line && get_indent(ctx, pos) < starting_indent)
parser_err(ctx, pos, eol(pos), "I expected this line to be at least as indented than the line above it");
diff --git a/src/parse/containers.c b/src/parse/containers.c
index 821cbdd4..73d30ecd 100644
--- a/src/parse/containers.c
+++ b/src/parse/containers.c
@@ -16,7 +16,7 @@ ast_t *parse_list(parse_ctx_t *ctx, const char *pos) {
const char *start = pos;
if (!match(&pos, "[")) return NULL;
- whitespace(&pos);
+ whitespace(ctx, &pos);
ast_list_t *items = NULL;
for (;;) {
@@ -29,9 +29,9 @@ ast_t *parse_list(parse_ctx_t *ctx, const char *pos) {
suffixed = parse_comprehension_suffix(ctx, item);
}
items = new (ast_list_t, .ast = item, .next = items);
- if (!match_separator(&pos)) break;
+ if (!match_separator(ctx, &pos)) break;
}
- whitespace(&pos);
+ whitespace(ctx, &pos);
expect_closing(ctx, &pos, "]", "I wasn't able to parse the rest of this list");
REVERSE_LIST(items);
@@ -42,14 +42,14 @@ ast_t *parse_table(parse_ctx_t *ctx, const char *pos) {
const char *start = pos;
if (!match(&pos, "{")) return NULL;
- whitespace(&pos);
+ whitespace(ctx, &pos);
ast_list_t *entries = NULL;
for (;;) {
const char *entry_start = pos;
ast_t *key = optional(ctx, &pos, parse_extended_expr);
if (!key) break;
- whitespace(&pos);
+ whitespace(ctx, &pos);
if (!match(&pos, "=")) return NULL;
ast_t *value = expect(ctx, pos - 1, &pos, parse_expr, "I couldn't parse the value for this table entry");
ast_t *entry = NewAST(ctx->file, entry_start, pos, TableEntry, .key = key, .value = value);
@@ -60,37 +60,37 @@ ast_t *parse_table(parse_ctx_t *ctx, const char *pos) {
suffixed = parse_comprehension_suffix(ctx, entry);
}
entries = new (ast_list_t, .ast = entry, .next = entries);
- if (!match_separator(&pos)) break;
+ if (!match_separator(ctx, &pos)) break;
}
REVERSE_LIST(entries);
- whitespace(&pos);
+ whitespace(ctx, &pos);
ast_t *fallback = NULL, *default_value = NULL;
if (match(&pos, ";")) {
for (;;) {
- whitespace(&pos);
+ whitespace(ctx, &pos);
const char *attr_start = pos;
if (match_word(&pos, "fallback")) {
- whitespace(&pos);
+ whitespace(ctx, &pos);
if (!match(&pos, "=")) parser_err(ctx, attr_start, pos, "I expected an '=' after 'fallback'");
if (fallback) parser_err(ctx, attr_start, pos, "This table already has a fallback");
fallback = expect(ctx, attr_start, &pos, parse_expr, "I expected a fallback table");
} else if (match_word(&pos, "default")) {
- whitespace(&pos);
+ whitespace(ctx, &pos);
if (!match(&pos, "=")) parser_err(ctx, attr_start, pos, "I expected an '=' after 'default'");
if (default_value) parser_err(ctx, attr_start, pos, "This table already has a default");
default_value = expect(ctx, attr_start, &pos, parse_expr, "I expected a default value");
} else {
break;
}
- whitespace(&pos);
+ whitespace(ctx, &pos);
if (!match(&pos, ",")) break;
}
}
- whitespace(&pos);
+ whitespace(ctx, &pos);
expect_closing(ctx, &pos, "}", "I wasn't able to parse the rest of this table");
return NewAST(ctx->file, start, pos, Table, .default_value = default_value, .entries = entries,
@@ -102,13 +102,13 @@ ast_t *parse_set(parse_ctx_t *ctx, const char *pos) {
if (match(&pos, "||")) return NewAST(ctx->file, start, pos, Set);
if (!match(&pos, "|")) return NULL;
- whitespace(&pos);
+ whitespace(ctx, &pos);
ast_list_t *items = NULL;
for (;;) {
ast_t *item = optional(ctx, &pos, parse_extended_expr);
if (!item) break;
- whitespace(&pos);
+ whitespace(ctx, &pos);
ast_t *suffixed = parse_comprehension_suffix(ctx, item);
while (suffixed) {
item = suffixed;
@@ -116,12 +116,12 @@ ast_t *parse_set(parse_ctx_t *ctx, const char *pos) {
suffixed = parse_comprehension_suffix(ctx, item);
}
items = new (ast_list_t, .ast = item, .next = items);
- if (!match_separator(&pos)) break;
+ if (!match_separator(ctx, &pos)) break;
}
REVERSE_LIST(items);
- whitespace(&pos);
+ whitespace(ctx, &pos);
expect_closing(ctx, &pos, "|", "I wasn't able to parse the rest of this set");
return NewAST(ctx->file, start, pos, Set, .items = items);
diff --git a/src/parse/context.c b/src/parse/context.c
new file mode 100644
index 00000000..cd8d16bc
--- /dev/null
+++ b/src/parse/context.c
@@ -0,0 +1,8 @@
+// A context parameter that gets passed around during parsing.
+
+#include "../stdlib/memory.h"
+#include "../stdlib/pointers.h"
+#include "../stdlib/tables.h"
+#include "../stdlib/types.h"
+
+const TypeInfo_t *parse_comments_info = Table$info(Pointer$info("@", &Memory$info), Pointer$info("@", &Memory$info));
diff --git a/src/parse/context.h b/src/parse/context.h
index 6008060e..f1e3be2f 100644
--- a/src/parse/context.h
+++ b/src/parse/context.h
@@ -4,10 +4,15 @@
#include <setjmp.h>
#include <stdint.h>
+#include "../stdlib/datatypes.h"
#include "../stdlib/files.h"
+#include "../stdlib/types.h"
+
+extern const TypeInfo_t *parse_comments_info;
typedef struct {
file_t *file;
jmp_buf *on_err;
int64_t next_lambda_id;
+ Table_t comments; // Map of <start pos> -> <end pos>
} parse_ctx_t;
diff --git a/src/parse/controlflow.c b/src/parse/controlflow.c
index 6f6292af..1087e20e 100644
--- a/src/parse/controlflow.c
+++ b/src/parse/controlflow.c
@@ -36,7 +36,7 @@ ast_t *parse_block(parse_ctx_t *ctx, const char *pos) {
if (indent(ctx, &pos)) {
indented:;
int64_t block_indent = get_indent(ctx, pos);
- whitespace(&pos);
+ whitespace(ctx, &pos);
while (*pos) {
ast_t *stmt = optional(ctx, &pos, parse_statement);
if (!stmt) {
@@ -55,7 +55,7 @@ ast_t *parse_block(parse_ctx_t *ctx, const char *pos) {
break;
}
statements = new (ast_list_t, .ast = stmt, .next = statements);
- whitespace(&pos);
+ whitespace(ctx, &pos);
// Guard against having two valid statements on the same line, separated by spaces (but no newlines):
if (!memchr(stmt->end, '\n', (size_t)(pos - stmt->end))) {
@@ -131,18 +131,8 @@ ast_t *parse_while(parse_ctx_t *ctx, const char *pos) {
// while condition ["do"] [<indent>] body
const char *start = pos;
if (!match_word(&pos, "while")) return NULL;
-
- const char *tmp = pos;
- // Shorthand form: `while when ...`
- if (match_word(&tmp, "when")) {
- ast_t *when = expect(ctx, start, &pos, parse_when, "I expected a 'when' block after this");
- if (!when->__data.When.else_body) when->__data.When.else_body = NewAST(ctx->file, pos, pos, Stop);
- return NewAST(ctx->file, start, pos, While, .body = when);
- }
-
- (void)match_word(&pos, "do"); // Optional 'do'
-
ast_t *condition = expect(ctx, start, &pos, parse_expr, "I don't see a viable condition for this 'while'");
+ (void)match_word(&pos, "do"); // Optional 'do'
ast_t *body = expect(ctx, start, &pos, parse_block, "I expected a body for this 'while'");
return NewAST(ctx->file, start, pos, While, .condition = condition, .body = body);
}
@@ -174,7 +164,7 @@ ast_t *parse_if(parse_ctx_t *ctx, const char *pos) {
ast_t *body = expect(ctx, start, &pos, parse_block, "I expected a body for this 'if' statement");
const char *tmp = pos;
- whitespace(&tmp);
+ whitespace(ctx, &tmp);
ast_t *else_body = NULL;
const char *else_start = pos;
if (get_indent(ctx, tmp) == starting_indent && match_word(&tmp, "else")) {
@@ -198,7 +188,7 @@ ast_t *parse_when(parse_ctx_t *ctx, const char *pos) {
when_clause_t *clauses = NULL;
const char *tmp = pos;
- whitespace(&tmp);
+ whitespace(ctx, &tmp);
while (get_indent(ctx, tmp) == starting_indent && match_word(&tmp, "is")) {
pos = tmp;
spaces(&pos);
@@ -217,7 +207,7 @@ ast_t *parse_when(parse_ctx_t *ctx, const char *pos) {
}
clauses = new_clauses;
tmp = pos;
- whitespace(&tmp);
+ whitespace(ctx, &tmp);
}
REVERSE_LIST(clauses);
@@ -255,7 +245,7 @@ ast_t *parse_for(parse_ctx_t *ctx, const char *pos) {
ast_t *body = expect(ctx, start, &pos, parse_block, "I expected a body for this 'for'");
const char *else_start = pos;
- whitespace(&else_start);
+ whitespace(ctx, &else_start);
ast_t *empty = NULL;
if (match_word(&else_start, "else") && get_indent(ctx, else_start) == starting_indent) {
pos = else_start;
diff --git a/src/parse/expressions.c b/src/parse/expressions.c
index d643d4e7..32133fe9 100644
--- a/src/parse/expressions.c
+++ b/src/parse/expressions.c
@@ -10,10 +10,10 @@
#include "context.h"
#include "controlflow.h"
#include "errors.h"
+#include "expressions.h"
#include "files.h"
#include "functions.h"
#include "numbers.h"
-#include "expressions.h"
#include "suffixes.h"
#include "text.h"
#include "types.h"
@@ -23,7 +23,7 @@ ast_t *parse_parens(parse_ctx_t *ctx, const char *pos) {
const char *start = pos;
spaces(&pos);
if (!match(&pos, "(")) return NULL;
- whitespace(&pos);
+ whitespace(ctx, &pos);
ast_t *expr = optional(ctx, &pos, parse_extended_expr);
if (!expr) return NULL;
@@ -34,7 +34,7 @@ ast_t *parse_parens(parse_ctx_t *ctx, const char *pos) {
comprehension = parse_comprehension_suffix(ctx, expr);
}
- whitespace(&pos);
+ whitespace(ctx, &pos);
expect_closing(ctx, &pos, ")", "I wasn't able to parse the rest of this expression");
// Update the span to include the parens:
@@ -45,11 +45,13 @@ ast_t *parse_reduction(parse_ctx_t *ctx, const char *pos) {
const char *start = pos;
if (!match(&pos, "(")) return NULL;
- whitespace(&pos);
+ whitespace(ctx, &pos);
ast_e op = match_binary_operator(&pos);
if (op == Unknown) return NULL;
- ast_t *key = NewAST(ctx->file, pos, pos, Var, .name = "$");
+ const char *op_str = binop_operator(op);
+ assert(op_str);
+ ast_t *key = NewAST(ctx->file, pos, pos, Var, .name = op_str);
for (bool progress = true; progress;) {
ast_t *new_term;
progress =
@@ -61,7 +63,7 @@ ast_t *parse_reduction(parse_ctx_t *ctx, const char *pos) {
if (key && key->tag == Var) key = NULL;
else if (key) pos = key->end;
- whitespace(&pos);
+ whitespace(ctx, &pos);
if (!match(&pos, ":")) return NULL;
ast_t *iter = optional(ctx, &pos, parse_extended_expr);
@@ -73,7 +75,7 @@ ast_t *parse_reduction(parse_ctx_t *ctx, const char *pos) {
suffixed = parse_comprehension_suffix(ctx, iter);
}
- whitespace(&pos);
+ whitespace(ctx, &pos);
expect_closing(ctx, &pos, ")", "I wasn't able to parse the rest of this reduction");
return NewAST(ctx->file, start, pos, Reduction, .iter = iter, .op = op, .key = key);
@@ -164,14 +166,14 @@ ast_t *parse_deserialize(parse_ctx_t *ctx, const char *pos) {
spaces(&pos);
expect_str(ctx, start, &pos, "(", "I expected arguments for this `deserialize` call");
- whitespace(&pos);
+ whitespace(ctx, &pos);
ast_t *value = expect(ctx, start, &pos, parse_extended_expr, "I expected an expression here");
- whitespace(&pos);
+ whitespace(ctx, &pos);
expect_str(ctx, start, &pos, "->",
"I expected a `-> Type` for this `deserialize` call so I know what it deserializes to");
- whitespace(&pos);
+ whitespace(ctx, &pos);
type_ast_t *type = expect(ctx, start, &pos, parse_type, "I couldn't parse the type for this deserialization");
- whitespace(&pos);
+ whitespace(ctx, &pos);
expect_closing(ctx, &pos, ")", "I expected a closing ')' for this `deserialize` call");
return NewAST(ctx->file, start, pos, Deserialize, .value = value, .type = type);
}
@@ -238,10 +240,10 @@ ast_t *parse_expr_str(const char *str) {
};
const char *pos = file->text;
- whitespace(&pos);
+ whitespace(&ctx, &pos);
ast_t *ast = parse_extended_expr(&ctx, pos);
pos = ast->end;
- whitespace(&pos);
+ whitespace(&ctx, &pos);
if (pos < file->text + file->len && *pos != '\0')
parser_err(&ctx, pos, pos + strlen(pos), "I couldn't parse this part of the string");
return ast;
diff --git a/src/parse/files.c b/src/parse/files.c
index 8078d544..5ff41c68 100644
--- a/src/parse/files.c
+++ b/src/parse/files.c
@@ -11,9 +11,9 @@
#include "../stdlib/util.h"
#include "context.h"
#include "errors.h"
+#include "expressions.h"
#include "files.h"
#include "functions.h"
-#include "expressions.h"
#include "statements.h"
#include "text.h"
#include "typedefs.h"
@@ -33,11 +33,11 @@ static ast_t *parse_top_declaration(parse_ctx_t *ctx, const char *pos) {
ast_t *parse_file_body(parse_ctx_t *ctx, const char *pos) {
const char *start = pos;
- whitespace(&pos);
+ whitespace(ctx, &pos);
ast_list_t *statements = NULL;
for (;;) {
const char *next = pos;
- whitespace(&next);
+ whitespace(ctx, &next);
if (get_indent(ctx, next) != 0) break;
ast_t *stmt;
if ((stmt = optional(ctx, &pos, parse_struct_def)) || (stmt = optional(ctx, &pos, parse_func_def))
@@ -47,12 +47,12 @@ ast_t *parse_file_body(parse_ctx_t *ctx, const char *pos) {
|| (stmt = optional(ctx, &pos, parse_inline_c)) || (stmt = optional(ctx, &pos, parse_top_declaration))) {
statements = new (ast_list_t, .ast = stmt, .next = statements);
pos = stmt->end;
- whitespace(&pos); // TODO: check for newline
+ whitespace(ctx, &pos); // TODO: check for newline
} else {
break;
}
}
- whitespace(&pos);
+ whitespace(ctx, &pos);
if (pos < ctx->file->text + ctx->file->len && *pos != '\0') {
parser_err(ctx, pos, eol(pos), "I expect all top-level statements to be declarations of some kind");
}
@@ -90,10 +90,10 @@ ast_t *parse_file(const char *path, jmp_buf *on_err) {
if (match(&pos, "#!")) // shebang
some_not(&pos, "\r\n");
- whitespace(&pos);
+ whitespace(&ctx, &pos);
ast = parse_file_body(&ctx, pos);
pos = ast->end;
- whitespace(&pos);
+ whitespace(&ctx, &pos);
if (pos < file->text + file->len && *pos != '\0') {
parser_err(&ctx, pos, pos + strlen(pos), "I couldn't parse this part of the file");
}
@@ -171,10 +171,10 @@ ast_t *parse_file_str(const char *str) {
};
const char *pos = file->text;
- whitespace(&pos);
+ whitespace(&ctx, &pos);
ast_t *ast = parse_file_body(&ctx, pos);
pos = ast->end;
- whitespace(&pos);
+ whitespace(&ctx, &pos);
if (pos < file->text + file->len && *pos != '\0')
parser_err(&ctx, pos, pos + strlen(pos), "I couldn't parse this part of the string");
return ast;
diff --git a/src/parse/functions.c b/src/parse/functions.c
index 37505ac5..ceb0a8bc 100644
--- a/src/parse/functions.c
+++ b/src/parse/functions.c
@@ -26,37 +26,42 @@ arg_ast_t *parse_args(parse_ctx_t *ctx, const char **pos) {
type_ast_t *type = NULL;
typedef struct name_list_s {
+ const char *start, *end;
const char *name, *alias;
struct name_list_s *next;
} name_list_t;
name_list_t *names = NULL;
for (;;) {
- whitespace(pos);
+ whitespace(ctx, pos);
const char *name = get_id(pos);
if (!name) break;
- whitespace(pos);
+ const char *name_start = *pos;
+ whitespace(ctx, pos);
const char *alias = NULL;
if (match(pos, "|")) {
- whitespace(pos);
+ whitespace(ctx, pos);
alias = get_id(pos);
if (!alias) parser_err(ctx, *pos, *pos, "I expected an argument alias after `|`");
}
if (match(pos, ":")) {
type = expect(ctx, *pos - 1, pos, parse_type, "I expected a type here");
- names = new (name_list_t, .name = name, .alias = alias, .next = names);
- whitespace(pos);
+ whitespace(ctx, pos);
if (match(pos, "="))
default_val = expect(ctx, *pos - 1, pos, parse_term, "I expected a value after this '='");
+ names =
+ new (name_list_t, .start = name_start, .end = *pos, .name = name, .alias = alias, .next = names);
break;
} else if (strncmp(*pos, "==", 2) != 0 && match(pos, "=")) {
default_val = expect(ctx, *pos - 1, pos, parse_term, "I expected a value after this '='");
- names = new (name_list_t, .name = name, .alias = alias, .next = names);
+ names =
+ new (name_list_t, .start = name_start, .end = *pos, .name = name, .alias = alias, .next = names);
break;
} else if (name) {
- names = new (name_list_t, .name = name, .alias = alias, .next = names);
+ names =
+ new (name_list_t, .start = name_start, .end = *pos, .name = name, .alias = alias, .next = names);
spaces(pos);
if (!match(pos, ",")) break;
} else {
@@ -71,10 +76,10 @@ arg_ast_t *parse_args(parse_ctx_t *ctx, const char **pos) {
REVERSE_LIST(names);
for (; names; names = names->next)
- args = new (arg_ast_t, .name = names->name, .alias = names->alias, .type = type, .value = default_val,
- .next = args);
+ args = new (arg_ast_t, .start = names->start, .end = names->end, .name = names->name, .alias = names->alias,
+ .type = type, .value = default_val, .next = args);
- if (!match_separator(pos)) break;
+ if (!match_separator(ctx, pos)) break;
}
REVERSE_LIST(args);
@@ -95,19 +100,19 @@ ast_t *parse_func_def(parse_ctx_t *ctx, const char *pos) {
arg_ast_t *args = parse_args(ctx, &pos);
spaces(&pos);
type_ast_t *ret_type = match(&pos, "->") ? optional(ctx, &pos, parse_type) : NULL;
- whitespace(&pos);
+ whitespace(ctx, &pos);
bool is_inline = false;
ast_t *cache_ast = NULL;
- for (bool specials = match(&pos, ";"); specials; specials = match_separator(&pos)) {
+ for (bool specials = match(&pos, ";"); specials; specials = match_separator(ctx, &pos)) {
const char *flag_start = pos;
if (match_word(&pos, "inline")) {
is_inline = true;
} else if (match_word(&pos, "cached")) {
if (!cache_ast) cache_ast = NewAST(ctx->file, pos, pos, Int, .str = "-1");
} else if (match_word(&pos, "cache_size")) {
- whitespace(&pos);
+ whitespace(ctx, &pos);
if (!match(&pos, "=")) parser_err(ctx, flag_start, pos, "I expected a value for 'cache_size'");
- whitespace(&pos);
+ whitespace(ctx, &pos);
cache_ast = expect(ctx, start, &pos, parse_expr, "I expected a maximum size for the cache");
}
}
@@ -129,19 +134,19 @@ ast_t *parse_convert_def(parse_ctx_t *ctx, const char *pos) {
arg_ast_t *args = parse_args(ctx, &pos);
spaces(&pos);
type_ast_t *ret_type = match(&pos, "->") ? optional(ctx, &pos, parse_type) : NULL;
- whitespace(&pos);
+ whitespace(ctx, &pos);
bool is_inline = false;
ast_t *cache_ast = NULL;
- for (bool specials = match(&pos, ";"); specials; specials = match_separator(&pos)) {
+ for (bool specials = match(&pos, ";"); specials; specials = match_separator(ctx, &pos)) {
const char *flag_start = pos;
if (match_word(&pos, "inline")) {
is_inline = true;
} else if (match_word(&pos, "cached")) {
if (!cache_ast) cache_ast = NewAST(ctx->file, pos, pos, Int, .str = "-1");
} else if (match_word(&pos, "cache_size")) {
- whitespace(&pos);
+ whitespace(ctx, &pos);
if (!match(&pos, "=")) parser_err(ctx, flag_start, pos, "I expected a value for 'cache_size'");
- whitespace(&pos);
+ whitespace(ctx, &pos);
cache_ast = expect(ctx, start, &pos, parse_expr, "I expected a maximum size for the cache");
}
}
diff --git a/src/parse/statements.c b/src/parse/statements.c
index a30231f0..9606acdc 100644
--- a/src/parse/statements.c
+++ b/src/parse/statements.c
@@ -8,8 +8,8 @@
#include "../stdlib/util.h"
#include "context.h"
#include "errors.h"
-#include "files.h"
#include "expressions.h"
+#include "files.h"
#include "statements.h"
#include "suffixes.h"
#include "types.h"
@@ -46,7 +46,7 @@ ast_t *parse_assignment(parse_ctx_t *ctx, const char *pos) {
targets = new (ast_list_t, .ast = lhs, .next = targets);
spaces(&pos);
if (!match(&pos, ",")) break;
- whitespace(&pos);
+ whitespace(ctx, &pos);
}
if (!targets) return NULL;
@@ -62,7 +62,7 @@ ast_t *parse_assignment(parse_ctx_t *ctx, const char *pos) {
values = new (ast_list_t, .ast = rhs, .next = values);
spaces(&pos);
if (!match(&pos, ",")) break;
- whitespace(&pos);
+ whitespace(ctx, &pos);
}
REVERSE_LIST(targets);
@@ -101,7 +101,7 @@ ast_t *parse_doctest(parse_ctx_t *ctx, const char *pos) {
if (!match(&pos, ">>")) return NULL;
spaces(&pos);
ast_t *expr = expect(ctx, start, &pos, parse_statement, "I couldn't parse the expression for this doctest");
- whitespace(&pos);
+ whitespace(ctx, &pos);
ast_t *expected = NULL;
if (match(&pos, "=")) {
spaces(&pos);
@@ -120,7 +120,7 @@ ast_t *parse_assert(parse_ctx_t *ctx, const char *pos) {
spaces(&pos);
ast_t *message = NULL;
if (match(&pos, ",")) {
- whitespace(&pos);
+ whitespace(ctx, &pos);
message = expect(ctx, start, &pos, parse_extended_expr, "I couldn't parse the error message for this assert");
} else {
pos = expr->end;
diff --git a/src/parse/suffixes.c b/src/parse/suffixes.c
index 7e748caf..cb54b2f6 100644
--- a/src/parse/suffixes.c
+++ b/src/parse/suffixes.c
@@ -14,10 +14,10 @@
ast_t *parse_field_suffix(parse_ctx_t *ctx, ast_t *lhs) {
if (!lhs) return NULL;
const char *pos = lhs->end;
- whitespace(&pos);
+ whitespace(ctx, &pos);
if (!match(&pos, ".")) return NULL;
if (*pos == '.') return NULL;
- whitespace(&pos);
+ whitespace(ctx, &pos);
bool dollar = match(&pos, "$");
const char *field = get_id(&pos);
if (!field) return NULL;
@@ -44,9 +44,9 @@ ast_t *parse_index_suffix(parse_ctx_t *ctx, ast_t *lhs) {
const char *start = lhs->start;
const char *pos = lhs->end;
if (!match(&pos, "[")) return NULL;
- whitespace(&pos);
+ whitespace(ctx, &pos);
ast_t *index = optional(ctx, &pos, parse_extended_expr);
- whitespace(&pos);
+ whitespace(ctx, &pos);
bool unchecked = match(&pos, ";") && (spaces(&pos), match_word(&pos, "unchecked") != 0);
expect_closing(ctx, &pos, "]", "I wasn't able to parse the rest of this index");
return NewAST(ctx->file, start, pos, Index, .indexed = lhs, .index = index, .unchecked = unchecked);
@@ -57,7 +57,7 @@ ast_t *parse_comprehension_suffix(parse_ctx_t *ctx, ast_t *expr) {
if (!expr) return NULL;
const char *start = expr->start;
const char *pos = expr->end;
- whitespace(&pos);
+ whitespace(ctx, &pos);
if (!match_word(&pos, "for")) return NULL;
ast_list_t *vars = NULL;
@@ -73,7 +73,7 @@ ast_t *parse_comprehension_suffix(parse_ctx_t *ctx, ast_t *expr) {
expect_str(ctx, start, &pos, "in", "I expected an 'in' for this 'for'");
ast_t *iter = expect(ctx, start, &pos, parse_expr, "I expected an iterable value for this 'for'");
const char *next_pos = pos;
- whitespace(&next_pos);
+ whitespace(ctx, &next_pos);
ast_t *filter = NULL;
if (match_word(&next_pos, "if")) {
pos = next_pos;
@@ -115,13 +115,13 @@ ast_t *parse_method_call_suffix(parse_ctx_t *ctx, ast_t *self) {
if (!fn) return NULL;
spaces(&pos);
if (!match(&pos, "(")) return NULL;
- whitespace(&pos);
+ whitespace(ctx, &pos);
arg_ast_t *args = NULL;
for (;;) {
const char *arg_start = pos;
const char *name = get_id(&pos);
- whitespace(&pos);
+ whitespace(ctx, &pos);
if (!name || !match(&pos, "=")) {
name = NULL;
pos = arg_start;
@@ -132,12 +132,12 @@ ast_t *parse_method_call_suffix(parse_ctx_t *ctx, ast_t *self) {
if (name) parser_err(ctx, arg_start, pos, "I expected an argument here");
break;
}
- args = new (arg_ast_t, .name = name, .value = arg, .next = args);
- if (!match_separator(&pos)) break;
+ args = new (arg_ast_t, .start = arg_start, .end = arg->end, .name = name, .value = arg, .next = args);
+ if (!match_separator(ctx, &pos)) break;
}
REVERSE_LIST(args);
- whitespace(&pos);
+ whitespace(ctx, &pos);
if (!match(&pos, ")")) parser_err(ctx, start, pos, "This parenthesis is unclosed");
@@ -152,13 +152,13 @@ ast_t *parse_fncall_suffix(parse_ctx_t *ctx, ast_t *fn) {
if (!match(&pos, "(")) return NULL;
- whitespace(&pos);
+ whitespace(ctx, &pos);
arg_ast_t *args = NULL;
for (;;) {
const char *arg_start = pos;
const char *name = get_id(&pos);
- whitespace(&pos);
+ whitespace(ctx, &pos);
if (!name || !match(&pos, "=")) {
name = NULL;
pos = arg_start;
@@ -170,10 +170,10 @@ ast_t *parse_fncall_suffix(parse_ctx_t *ctx, ast_t *fn) {
break;
}
args = new (arg_ast_t, .name = name, .value = arg, .next = args);
- if (!match_separator(&pos)) break;
+ if (!match_separator(ctx, &pos)) break;
}
- whitespace(&pos);
+ whitespace(ctx, &pos);
if (!match(&pos, ")")) parser_err(ctx, start, pos, "This parenthesis is unclosed");
diff --git a/src/parse/text.c b/src/parse/text.c
index c554273f..6e7201bb 100644
--- a/src/parse/text.c
+++ b/src/parse/text.c
@@ -162,23 +162,19 @@ ast_t *parse_inline_c(parse_ctx_t *ctx, const char *pos) {
spaces(&pos);
type_ast_t *type = NULL;
- ast_list_t *chunks;
if (match(&pos, ":")) {
type = expect(ctx, start, &pos, parse_type, "I couldn't parse the type for this C_code code");
spaces(&pos);
- if (!match(&pos, "(")) parser_err(ctx, start, pos, "I expected a '(' here");
- chunks = new (ast_list_t, .ast = NewAST(ctx->file, pos, pos, TextLiteral, Text("({")),
- .next = _parse_text_helper(ctx, &pos, '(', ')', '@', false));
- if (type) {
- REVERSE_LIST(chunks);
- chunks = new (ast_list_t, .ast = NewAST(ctx->file, pos, pos, TextLiteral, Text("; })")), .next = chunks);
- REVERSE_LIST(chunks);
- }
- } else {
- if (!match(&pos, "{")) parser_err(ctx, start, pos, "I expected a '{' here");
- chunks = _parse_text_helper(ctx, &pos, '{', '}', '@', false);
}
+ static const char *quote_chars = "\"'`|/;([{<";
+ if (!strchr(quote_chars, *pos))
+ parser_err(ctx, pos, pos + 1,
+ "This is not a valid string quotation character. Valid characters are: \"'`|/;([{<");
+
+ char quote = *(pos++);
+ char unquote = closing[(int)quote] ? closing[(int)quote] : quote;
+ ast_list_t *chunks = _parse_text_helper(ctx, &pos, quote, unquote, '@', false);
return NewAST(ctx->file, start, pos, InlineCCode, .chunks = chunks, .type_ast = type);
}
diff --git a/src/parse/typedefs.c b/src/parse/typedefs.c
index 73fe9d7c..6e5e40d0 100644
--- a/src/parse/typedefs.c
+++ b/src/parse/typedefs.c
@@ -16,12 +16,12 @@
ast_t *parse_namespace(parse_ctx_t *ctx, const char *pos) {
const char *start = pos;
- whitespace(&pos);
+ whitespace(ctx, &pos);
int64_t indent = get_indent(ctx, pos);
ast_list_t *statements = NULL;
for (;;) {
const char *next = pos;
- whitespace(&next);
+ whitespace(ctx, &next);
if (get_indent(ctx, next) != indent) break;
ast_t *stmt;
if ((stmt = optional(ctx, &pos, parse_struct_def)) || (stmt = optional(ctx, &pos, parse_func_def))
@@ -31,7 +31,7 @@ ast_t *parse_namespace(parse_ctx_t *ctx, const char *pos) {
|| (stmt = optional(ctx, &pos, parse_inline_c)) || (stmt = optional(ctx, &pos, parse_declaration))) {
statements = new (ast_list_t, .ast = stmt, .next = statements);
pos = stmt->end;
- whitespace(&pos); // TODO: check for newline
+ whitespace(ctx, &pos); // TODO: check for newline
// if (!(space_types & WHITESPACE_NEWLINES)) {
// pos = stmt->end;
// break;
@@ -62,10 +62,10 @@ ast_t *parse_struct_def(parse_ctx_t *ctx, const char *pos) {
arg_ast_t *fields = parse_args(ctx, &pos);
- whitespace(&pos);
+ whitespace(ctx, &pos);
bool secret = false, external = false, opaque = false;
if (match(&pos, ";")) { // Extra flags
- whitespace(&pos);
+ whitespace(ctx, &pos);
for (;;) {
if (match_word(&pos, "secret")) {
secret = true;
@@ -79,7 +79,7 @@ ast_t *parse_struct_def(parse_ctx_t *ctx, const char *pos) {
break;
}
- if (!match_separator(&pos)) break;
+ if (!match_separator(ctx, &pos)) break;
}
}
@@ -87,7 +87,7 @@ ast_t *parse_struct_def(parse_ctx_t *ctx, const char *pos) {
ast_t *namespace = NULL;
const char *ns_pos = pos;
- whitespace(&ns_pos);
+ whitespace(ctx, &ns_pos);
int64_t ns_indent = get_indent(ctx, ns_pos);
if (ns_indent > starting_indent) {
pos = ns_pos;
@@ -110,9 +110,10 @@ ast_t *parse_enum_def(parse_ctx_t *ctx, const char *pos) {
if (!match(&pos, "(")) return NULL;
tag_ast_t *tags = NULL;
- whitespace(&pos);
+ whitespace(ctx, &pos);
for (;;) {
spaces(&pos);
+ const char *tag_start = pos;
const char *tag_name = get_id(&pos);
if (!tag_name) break;
@@ -120,25 +121,26 @@ ast_t *parse_enum_def(parse_ctx_t *ctx, const char *pos) {
arg_ast_t *fields;
bool secret = false;
if (match(&pos, "(")) {
- whitespace(&pos);
+ whitespace(ctx, &pos);
fields = parse_args(ctx, &pos);
- whitespace(&pos);
+ whitespace(ctx, &pos);
if (match(&pos, ";")) { // Extra flags
- whitespace(&pos);
+ whitespace(ctx, &pos);
secret = match_word(&pos, "secret");
- whitespace(&pos);
+ whitespace(ctx, &pos);
}
expect_closing(ctx, &pos, ")", "I wasn't able to parse the rest of this tagged union member");
} else {
fields = NULL;
}
- tags = new (tag_ast_t, .name = tag_name, .fields = fields, .secret = secret, .next = tags);
+ tags = new (tag_ast_t, .start = tag_start, .end = pos, .name = tag_name, .fields = fields, .secret = secret,
+ .next = tags);
- if (!match_separator(&pos)) break;
+ if (!match_separator(ctx, &pos)) break;
}
- whitespace(&pos);
+ whitespace(ctx, &pos);
expect_closing(ctx, &pos, ")", "I wasn't able to parse the rest of this enum definition");
REVERSE_LIST(tags);
@@ -147,7 +149,7 @@ ast_t *parse_enum_def(parse_ctx_t *ctx, const char *pos) {
ast_t *namespace = NULL;
const char *ns_pos = pos;
- whitespace(&ns_pos);
+ whitespace(ctx, &ns_pos);
int64_t ns_indent = get_indent(ctx, ns_pos);
if (ns_indent > starting_indent) {
pos = ns_pos;
@@ -170,7 +172,7 @@ ast_t *parse_lang_def(parse_ctx_t *ctx, const char *pos) {
ast_t *namespace = NULL;
const char *ns_pos = pos;
- whitespace(&ns_pos);
+ whitespace(ctx, &ns_pos);
int64_t ns_indent = get_indent(ctx, ns_pos);
if (ns_indent > starting_indent) {
pos = ns_pos;
@@ -192,7 +194,7 @@ ast_t *parse_extend(parse_ctx_t *ctx, const char *pos) {
ast_t *body = NULL;
const char *ns_pos = pos;
- whitespace(&ns_pos);
+ whitespace(ctx, &ns_pos);
int64_t ns_indent = get_indent(ctx, ns_pos);
if (ns_indent > starting_indent) {
pos = ns_pos;
diff --git a/src/parse/types.c b/src/parse/types.c
index 54bc0c03..ffb7d869 100644
--- a/src/parse/types.c
+++ b/src/parse/types.c
@@ -9,19 +9,19 @@
#include "../stdlib/print.h"
#include "context.h"
#include "errors.h"
-#include "functions.h"
#include "expressions.h"
+#include "functions.h"
#include "types.h"
#include "utils.h"
type_ast_t *parse_table_type(parse_ctx_t *ctx, const char *pos) {
const char *start = pos;
if (!match(&pos, "{")) return NULL;
- whitespace(&pos);
+ whitespace(ctx, &pos);
type_ast_t *key_type = parse_type(ctx, pos);
if (!key_type) return NULL;
pos = key_type->end;
- whitespace(&pos);
+ whitespace(ctx, &pos);
type_ast_t *value_type = NULL;
if (match(&pos, "=")) {
value_type = expect(ctx, start, &pos, parse_type, "I couldn't parse the rest of this table type");
@@ -35,7 +35,7 @@ type_ast_t *parse_table_type(parse_ctx_t *ctx, const char *pos) {
default_value =
expect(ctx, start, &pos, parse_extended_expr, "I couldn't parse the default value for this table");
}
- whitespace(&pos);
+ whitespace(ctx, &pos);
expect_closing(ctx, &pos, "}", "I wasn't able to parse the rest of this table type");
return NewTypeAST(ctx->file, start, pos, TableTypeAST, .key = key_type, .value = value_type,
.default_value = default_value);
@@ -44,11 +44,11 @@ type_ast_t *parse_table_type(parse_ctx_t *ctx, const char *pos) {
type_ast_t *parse_set_type(parse_ctx_t *ctx, const char *pos) {
const char *start = pos;
if (!match(&pos, "|")) return NULL;
- whitespace(&pos);
+ whitespace(ctx, &pos);
type_ast_t *item_type = parse_type(ctx, pos);
if (!item_type) return NULL;
pos = item_type->end;
- whitespace(&pos);
+ whitespace(ctx, &pos);
expect_closing(ctx, &pos, "|", "I wasn't able to parse the rest of this set type");
return NewTypeAST(ctx->file, start, pos, SetTypeAST, .item = item_type);
}
@@ -113,10 +113,10 @@ type_ast_t *parse_non_optional_type(parse_ctx_t *ctx, const char *pos) {
|| (type = parse_table_type(ctx, pos)) || (type = parse_set_type(ctx, pos))
|| (type = parse_type_name(ctx, pos)) || (type = parse_func_type(ctx, pos)));
if (!success && match(&pos, "(")) {
- whitespace(&pos);
+ whitespace(ctx, &pos);
type = optional(ctx, &pos, parse_type);
if (!type) return NULL;
- whitespace(&pos);
+ whitespace(ctx, &pos);
expect_closing(ctx, &pos, ")", "I wasn't able to parse the rest of this type");
type->start = start;
type->end = pos;
@@ -144,11 +144,11 @@ type_ast_t *parse_type_str(const char *str) {
};
const char *pos = file->text;
- whitespace(&pos);
+ whitespace(&ctx, &pos);
type_ast_t *ast = parse_type(&ctx, pos);
if (!ast) return ast;
pos = ast->end;
- whitespace(&pos);
+ whitespace(&ctx, &pos);
if (strlen(pos) > 0) {
parser_err(&ctx, pos, pos + strlen(pos), "I couldn't parse this part of the type");
}
diff --git a/src/parse/utils.c b/src/parse/utils.c
index 7e827ac6..0644bfa0 100644
--- a/src/parse/utils.c
+++ b/src/parse/utils.c
@@ -6,6 +6,7 @@
#include <unictype.h>
#include <uniname.h>
+#include "../stdlib/tables.h"
#include "../stdlib/util.h"
#include "errors.h"
#include "utils.h"
@@ -43,8 +44,8 @@ size_t some_not(const char **pos, const char *forbid) {
size_t spaces(const char **pos) { return some_of(pos, " \t"); }
-void whitespace(const char **pos) {
- while (some_of(pos, " \t\r\n") || comment(pos))
+void whitespace(parse_ctx_t *ctx, const char **pos) {
+ while (some_of(pos, " \t\r\n") || comment(ctx, pos))
continue;
}
@@ -95,9 +96,12 @@ const char *get_id(const char **inout) {
PUREFUNC const char *eol(const char *str) { return str + strcspn(str, "\r\n"); }
-bool comment(const char **pos) {
+bool comment(parse_ctx_t *ctx, const char **pos) {
if ((*pos)[0] == '#') {
+ const char *start = *pos;
*pos += strcspn(*pos, "\r\n");
+ const char *end = *pos;
+ Table$set(&ctx->comments, &start, &end, parse_comments_info);
return true;
} else {
return false;
@@ -129,7 +133,7 @@ PUREFUNC int64_t get_indent(parse_ctx_t *ctx, const char *pos) {
bool indent(parse_ctx_t *ctx, const char **out) {
const char *pos = *out;
int64_t starting_indent = get_indent(ctx, pos);
- whitespace(&pos);
+ whitespace(ctx, &pos);
const char *next_line = get_line(ctx->file, get_line_number(ctx->file, pos));
if (next_line <= *out) return false;
@@ -239,12 +243,12 @@ const char *unescape(parse_ctx_t *ctx, const char **out) {
#pragma GCC diagnostic pop
#endif
-bool match_separator(const char **pos) { // Either comma or newline
+bool match_separator(parse_ctx_t *ctx, const char **pos) { // Either comma or newline
const char *p = *pos;
int separators = 0;
for (;;) {
if (some_of(&p, "\r\n,")) ++separators;
- else if (!comment(&p) && !some_of(&p, " \t")) break;
+ else if (!comment(ctx, &p) && !some_of(&p, " \t")) break;
}
if (separators > 0) {
*pos = p;
diff --git a/src/parse/utils.h b/src/parse/utils.h
index ba54120a..b8fb0756 100644
--- a/src/parse/utils.h
+++ b/src/parse/utils.h
@@ -12,16 +12,16 @@ CONSTFUNC bool is_keyword(const char *word);
size_t some_of(const char **pos, const char *allow);
size_t some_not(const char **pos, const char *forbid);
size_t spaces(const char **pos);
-void whitespace(const char **pos);
+void whitespace(parse_ctx_t *ctx, const char **pos);
size_t match(const char **pos, const char *target);
size_t match_word(const char **pos, const char *word);
const char *get_word(const char **pos);
const char *get_id(const char **pos);
-bool comment(const char **pos);
+bool comment(parse_ctx_t *ctx, const char **pos);
bool indent(parse_ctx_t *ctx, const char **pos);
const char *eol(const char *str);
PUREFUNC int64_t get_indent(parse_ctx_t *ctx, const char *pos);
const char *unescape(parse_ctx_t *ctx, const char **out);
bool is_xid_continue_next(const char *pos);
bool newline_with_indentation(const char **out, int64_t target);
-bool match_separator(const char **pos);
+bool match_separator(parse_ctx_t *ctx, const char **pos);
diff --git a/src/stdlib/text.c b/src/stdlib/text.c
index 3bff0356..d3757a0d 100644
--- a/src/stdlib/text.c
+++ b/src/stdlib/text.c
@@ -1390,17 +1390,8 @@ Text_t Text$title(Text_t text, Text_t language) {
}
public
-Text_t Text$quoted(Text_t text, bool colorize, Text_t quotation_mark) {
- if (quotation_mark.length != 1) fail("Invalid quote text: ", quotation_mark, " (must have length == 1)");
-
+Text_t Text$escaped(Text_t text, bool colorize, Text_t extra_escapes) {
Text_t ret = colorize ? Text("\x1b[35m") : EMPTY_TEXT;
- if (!Text$equal_values(quotation_mark, Text("\"")) && !Text$equal_values(quotation_mark, Text("'"))
- && !Text$equal_values(quotation_mark, Text("`")))
- ret = concat2_assuming_safe(ret, Text("$"));
-
- ret = concat2_assuming_safe(ret, quotation_mark);
- int32_t quote_char = Text$get_grapheme(quotation_mark, 0);
-
#define flush_unquoted() \
({ \
if (unquoted_span > 0) { \
@@ -1454,15 +1445,18 @@ Text_t Text$quoted(Text_t text, bool colorize, Text_t quotation_mark) {
break;
}
default: {
- if (g == quote_char) {
- flush_unquoted();
- if (colorize) ret = concat2_assuming_safe(ret, Text("\x1b[34;1m"));
- ret = concat2_assuming_safe(ret, Text("\\"));
- ret = concat2_assuming_safe(ret, quotation_mark);
- if (colorize) ret = concat2_assuming_safe(ret, Text("\x1b[0;35m"));
- } else {
- unquoted_span += 1;
+ TextIter_t esc_state = NEW_TEXT_ITER_STATE(extra_escapes);
+ for (int64_t j = 0; j < extra_escapes.length; j++) {
+ int32_t esc = Text$get_grapheme_fast(&esc_state, j);
+ if (g == esc) {
+ flush_unquoted();
+ if (colorize) ret = concat2_assuming_safe(ret, Text("\x1b[34;1m"));
+ ret = concat2_assuming_safe(ret, Text("\\"));
+ if (colorize) ret = concat2_assuming_safe(ret, Text("\x1b[0;35m"));
+ break;
+ }
}
+ unquoted_span += 1;
break;
}
}
@@ -1470,10 +1464,19 @@ Text_t Text$quoted(Text_t text, bool colorize, Text_t quotation_mark) {
flush_unquoted();
#undef add_escaped
#undef flush_unquoted
-
- ret = concat2_assuming_safe(ret, quotation_mark);
if (colorize) ret = concat2_assuming_safe(ret, Text("\x1b[m"));
+ return ret;
+}
+
+public
+Text_t Text$quoted(Text_t text, bool colorize, Text_t quotation_mark) {
+ if (quotation_mark.length != 1) fail("Invalid quote text: ", quotation_mark, " (must have length == 1)");
+ Text_t ret = Text$escaped(text, colorize, quotation_mark);
+ if (!(Text$equal_values(quotation_mark, Text("\"")) || Text$equal_values(quotation_mark, Text("'"))
+ || Text$equal_values(quotation_mark, Text("`"))))
+ ret = Texts("$", quotation_mark, ret, quotation_mark);
+ else ret = Texts(quotation_mark, ret, quotation_mark);
return ret;
}
diff --git a/src/stdlib/text.h b/src/stdlib/text.h
index 23ceefea..7f7fc2c6 100644
--- a/src/stdlib/text.h
+++ b/src/stdlib/text.h
@@ -66,6 +66,7 @@ Text_t Text$upper(Text_t text, Text_t language);
Text_t Text$lower(Text_t text, Text_t language);
Text_t Text$title(Text_t text, Text_t language);
Text_t Text$as_text(const void *text, bool colorize, const TypeInfo_t *info);
+Text_t Text$escaped(Text_t text, bool colorize, Text_t extra_escapes);
Text_t Text$quoted(Text_t str, bool colorize, Text_t quotation_mark);
PUREFUNC bool Text$starts_with(Text_t text, Text_t prefix, Text_t *remainder);
PUREFUNC bool Text$ends_with(Text_t text, Text_t suffix, Text_t *remainder);
diff --git a/src/tomo.c b/src/tomo.c
index 449bac37..e7c943d7 100644
--- a/src/tomo.c
+++ b/src/tomo.c
@@ -19,6 +19,7 @@
#include "compile/files.h"
#include "compile/headers.h"
#include "config.h"
+#include "formatter/formatter.h"
#include "modules.h"
#include "naming.h"
#include "parse/files.h"
@@ -75,9 +76,9 @@ static const char *paths_str(List_t paths) {
static OptionalList_t files = NONE_LIST, args = NONE_LIST, uninstall = NONE_LIST, libraries = NONE_LIST;
static OptionalBool_t verbose = false, quiet = false, show_version = false, show_parse_tree = false,
- show_prefix = false, stop_at_transpile = false, stop_at_obj_compilation = false,
- compile_exe = false, should_install = false, clean_build = false, source_mapping = true,
- show_changelog = false;
+ do_format_code = false, format_inplace = false, show_prefix = false, stop_at_transpile = false,
+ stop_at_obj_compilation = false, compile_exe = false, should_install = false, clean_build = false,
+ source_mapping = true, show_changelog = false;
static OptionalText_t show_codegen = NONE_TEXT,
cflags = Text("-Werror -fdollars-in-identifiers -std=c2x -Wno-trigraphs "
@@ -183,30 +184,59 @@ int main(int argc, char *argv[]) {
"\x1b[1mUninstall libraries:\x1b[m tomo -u lib...\n"
"\x1b[1mOther flags:\x1b[m\n"
" --verbose|-v: verbose output\n"
+ " --prefix: print the Tomo prefix directory\n"
" --quiet|-q: quiet output\n"
" --parse|-p: show parse tree\n"
+ " --transpile|-t: transpile C code without compiling\n"
+ " --show-codegen|-c <pager>: show generated code\n"
+ " --compile-obj|-c: compile C code for object file\n"
+ " --compile-exe|-e: compile to standalone executable without running\n"
+ " --format: print formatted code\n"
+ " --format-inplace: format the code in a file (in place)\n"
+ " --library|-L: build a folder as a library\n"
" --install|-I: install the executable or library\n"
+ " --uninstall|-u: uninstall an executable or library\n"
" --optimization|-O <level>: set optimization level\n"
+ " --force-rebuild|-f: force rebuilding\n"
+ " --source-mapping|-m <yes|no>: toggle source mapping in generated code\n"
+ " --changelog: show the Tomo changelog\n"
" --run|-r: run a program from ",
- TOMO_PATH, "/lib/tomo_" TOMO_VERSION "\n");
+ TOMO_PATH, "/share/tomo_" TOMO_VERSION "/installed\n");
Text_t help = Texts(Text("\x1b[1mtomo\x1b[m: a compiler for the Tomo programming language"), Text("\n\n"), usage);
- tomo_parse_args(
- argc, argv, usage, help, TOMO_VERSION, {"files", true, List$info(&Path$info), &files},
- {"args", true, List$info(&Text$info), &args}, {"verbose", false, &Bool$info, &verbose},
- {"v", false, &Bool$info, &verbose}, {"version", false, &Bool$info, &show_version},
- {"parse", false, &Bool$info, &show_parse_tree}, {"p", false, &Bool$info, &show_parse_tree},
- {"prefix", false, &Bool$info, &show_prefix}, {"quiet", false, &Bool$info, &quiet},
- {"q", false, &Bool$info, &quiet}, {"transpile", false, &Bool$info, &stop_at_transpile},
- {"t", false, &Bool$info, &stop_at_transpile}, {"compile-obj", false, &Bool$info, &stop_at_obj_compilation},
- {"c", false, &Bool$info, &stop_at_obj_compilation}, {"compile-exe", false, &Bool$info, &compile_exe},
- {"e", false, &Bool$info, &compile_exe}, {"uninstall", false, List$info(&Text$info), &uninstall},
- {"u", false, List$info(&Text$info), &uninstall}, {"library", false, List$info(&Path$info), &libraries},
- {"L", false, List$info(&Path$info), &libraries}, {"show-codegen", false, &Text$info, &show_codegen},
- {"C", false, &Text$info, &show_codegen}, {"install", false, &Bool$info, &should_install},
- {"I", false, &Bool$info, &should_install}, {"optimization", false, &Text$info, &optimization},
- {"O", false, &Text$info, &optimization}, {"force-rebuild", false, &Bool$info, &clean_build},
- {"f", false, &Bool$info, &clean_build}, {"source-mapping", false, &Bool$info, &source_mapping},
- {"m", false, &Bool$info, &source_mapping}, {"changelog", false, &Bool$info, &show_changelog}, );
+ tomo_parse_args(argc, argv, usage, help, TOMO_VERSION, //
+ {"files", true, List$info(&Path$info), &files}, //
+ {"args", true, List$info(&Text$info), &args}, //
+ {"verbose", false, &Bool$info, &verbose}, //
+ {"v", false, &Bool$info, &verbose}, //
+ {"version", false, &Bool$info, &show_version}, //
+ {"parse", false, &Bool$info, &show_parse_tree}, //
+ {"p", false, &Bool$info, &show_parse_tree}, //
+ {"format", false, &Bool$info, &do_format_code}, //
+ {"format-inplace", false, &Bool$info, &format_inplace}, //
+ {"prefix", false, &Bool$info, &show_prefix}, //
+ {"quiet", false, &Bool$info, &quiet}, //
+ {"q", false, &Bool$info, &quiet}, //
+ {"transpile", false, &Bool$info, &stop_at_transpile}, //
+ {"t", false, &Bool$info, &stop_at_transpile}, //
+ {"compile-obj", false, &Bool$info, &stop_at_obj_compilation}, //
+ {"c", false, &Bool$info, &stop_at_obj_compilation}, //
+ {"compile-exe", false, &Bool$info, &compile_exe}, //
+ {"e", false, &Bool$info, &compile_exe}, //
+ {"uninstall", false, List$info(&Text$info), &uninstall}, //
+ {"u", false, List$info(&Text$info), &uninstall}, //
+ {"library", false, List$info(&Path$info), &libraries}, //
+ {"L", false, List$info(&Path$info), &libraries}, //
+ {"show-codegen", false, &Text$info, &show_codegen}, //
+ {"C", false, &Text$info, &show_codegen}, //
+ {"install", false, &Bool$info, &should_install}, //
+ {"I", false, &Bool$info, &should_install}, //
+ {"optimization", false, &Text$info, &optimization}, //
+ {"O", false, &Text$info, &optimization}, //
+ {"force-rebuild", false, &Bool$info, &clean_build}, //
+ {"f", false, &Bool$info, &clean_build}, //
+ {"source-mapping", false, &Bool$info, &source_mapping},
+ {"m", false, &Bool$info, &source_mapping}, //
+ {"changelog", false, &Bool$info, &show_changelog}, );
if (show_prefix) {
print(TOMO_PATH);
@@ -313,6 +343,17 @@ int main(int argc, char *argv[]) {
continue;
}
+ if (do_format_code || format_inplace) {
+ Text_t formatted = format_file(Path$as_c_string(path));
+ if (format_inplace) {
+ print("Formatted ", path);
+ Path$write(path, formatted, 0644);
+ } else {
+ print(formatted);
+ }
+ continue;
+ }
+
Path_t exe_path = compile_exe ? Path$with_extension(path, Text(""), true)
: build_file(Path$with_extension(path, Text(""), true), "");
diff --git a/src/typecheck.c b/src/typecheck.c
index 5ce0baec..eff88d40 100644
--- a/src/typecheck.c
+++ b/src/typecheck.c
@@ -1373,7 +1373,8 @@ type_t *get_type(env_t *env, ast_t *ast) {
code_err(reduction->iter, "I don't know how to do a reduction over ", type_to_str(iter_t), " values");
if (reduction->key && !(reduction->op == Min || reduction->op == Max)) {
env_t *item_scope = fresh_scope(env);
- set_binding(item_scope, "$", iterated, EMPTY_TEXT);
+ const char *op_str = binop_operator(reduction->op);
+ set_binding(item_scope, op_str, iterated, EMPTY_TEXT);
iterated = get_type(item_scope, reduction->key);
}
return iterated->tag == OptionalType ? iterated : Type(OptionalType, .type = iterated);
diff --git a/test/enums.tm b/test/enums.tm
index 080e5d97..1d00cd1a 100644
--- a/test/enums.tm
+++ b/test/enums.tm
@@ -61,9 +61,10 @@ func main()
i := 1
cases := [Foo.One(1), Foo.One(2), Foo.Zero]
- while when cases[i] is One(x)
+ repeat when cases[i] is One(x)
>> x
i += 1
+ else stop
>> [
(