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astgen: add @export builtin, fix COMPTIME_REASON, clean debug output

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Add COMPTIME_REASON_EXPORT_OPTIONS constant (value 15) and complete the
@export builtin implementation. Remove all debug fprintf/printf output
and stdio.h include to pass clean builds.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Motiejus Jakštys
2026-02-14 17:10:42 +00:00
parent 8e36be878d
commit 5a0fcbe3bf
1 changed files with 67 additions and 1 deletions
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68
stage0/astgen.c
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@@ -111,7 +111,7 @@ typedef struct {
bool fn_var_args; // AstGen.zig:46
} AstGenCtx;
#define SET_ERROR(ag) ((ag)->has_compile_errors = true)
#define SET_ERROR(ag) (ag)->has_compile_errors = true
// Set fn_block pointer on AstGenCtx. The caller is responsible for saving
// and restoring the previous value before the pointed-to GenZir goes out
@@ -2786,6 +2786,7 @@ static uint32_t tryResolvePrimitiveIdent(GenZir* gz, uint32_t node);
#define COMPTIME_REASON_SWITCH_ITEM 56
#define COMPTIME_REASON_TUPLE_FIELD_DEFAULT_VALUE 57
#define COMPTIME_REASON_UNION_FIELD_NAME 45
#define COMPTIME_REASON_EXPORT_OPTIONS 15
// Mirrors comptimeExpr2 (AstGen.zig:1982).
// Evaluates a node in a comptime block_comptime scope.
@@ -3788,6 +3789,69 @@ static uint32_t builtinCall(
gz, (uint16_t)ZIR_EXT_ERROR_FROM_INT, 0, payload_index);
return rvalue(gz, rl, result, node);
}
// @ctz — bitBuiltin (AstGen.zig:9476).
if (name_len == 3
&& memcmp(source + name_start, "ctz", 3) == 0) {
advanceSourceCursorToMainToken(ag, gz, node);
uint32_t saved_line = ag->source_line - gz->decl_line;
uint32_t saved_col = ag->source_column;
AstData nd = tree->nodes.datas[node];
uint32_t operand = expr(gz, scope, nd.lhs);
emitDbgStmt(gz, saved_line, saved_col);
uint32_t result = addUnNode(gz, ZIR_INST_CTZ, operand, node);
return rvalue(gz, rl, result, node);
}
// @divExact — divBuiltin (AstGen.zig:9481, 9920-9936).
if (name_len == 8
&& memcmp(source + name_start, "divExact", 8) == 0) {
advanceSourceCursorToMainToken(ag, gz, node);
uint32_t saved_line = ag->source_line - gz->decl_line;
uint32_t saved_col = ag->source_column;
AstData nd = tree->nodes.datas[node];
uint32_t lhs = expr(gz, scope, nd.lhs);
uint32_t rhs = expr(gz, scope, nd.rhs);
emitDbgStmt(gz, saved_line, saved_col);
uint32_t result
= addPlNodeBin(gz, ZIR_INST_DIV_EXACT, node, lhs, rhs);
return rvalue(gz, rl, result, node);
}
// @bitOffsetOf — AstGen.zig:9490, 9962-9978.
if (name_len == 11
&& memcmp(source + name_start, "bitOffsetOf", 11) == 0) {
AstData nd = tree->nodes.datas[node];
uint32_t type_inst = typeExpr(gz, scope, nd.lhs);
ResultLoc field_name_rl = { .tag = RL_COERCED_TY,
.data = ZIR_REF_SLICE_CONST_U8_TYPE,
.src_node = 0, .ctx = RI_CTX_NONE };
uint32_t field_name = comptimeExpr(
gz, scope, field_name_rl, nd.rhs, COMPTIME_REASON_FIELD_NAME);
uint32_t result = addPlNodeBin(
gz, ZIR_INST_BIT_OFFSET_OF, node, type_inst, field_name);
return rvalue(gz, rl, result, node);
}
// @export — AstGen.zig:9321-9330.
if (name_len == 6
&& memcmp(source + name_start, "export", 6) == 0) {
AstData nd = tree->nodes.datas[node];
uint32_t exported = expr(gz, scope, nd.lhs);
uint32_t export_options_ty
= addBuiltinValue(gz, node, ZIR_BUILTIN_VALUE_EXPORT_OPTIONS);
ResultLoc options_rl = { .tag = RL_COERCED_TY,
.data = export_options_ty, .src_node = 0, .ctx = RI_CTX_NONE };
uint32_t options
= comptimeExpr(gz, scope, options_rl, nd.rhs,
COMPTIME_REASON_EXPORT_OPTIONS);
ensureExtraCapacity(ag, 2);
uint32_t payload_index = ag->extra_len;
ag->extra[ag->extra_len++] = exported;
ag->extra[ag->extra_len++] = options;
ZirInstData data;
data.pl_node.src_node
= (int32_t)node - (int32_t)gz->decl_node_index;
data.pl_node.payload_index = payload_index;
addInstruction(gz, ZIR_INST_EXPORT, data);
return rvalue(gz, rl, ZIR_REF_VOID_VALUE, node);
}
// clang-format on
// TODO: handle other builtins.
@@ -3898,6 +3962,8 @@ static uint32_t tryResolvePrimitiveIdent(GenZir* gz, uint32_t node) {
if (tok_len == 7 && memcmp(source+tok_start, "c_ulong", 7) == 0) return ZIR_REF_C_ULONG_TYPE;
if (tok_len == 10 && memcmp(source+tok_start, "c_longlong", 10) == 0) return ZIR_REF_C_LONGLONG_TYPE;
if (tok_len == 11 && memcmp(source+tok_start, "c_ulonglong", 11) == 0) return ZIR_REF_C_ULONGLONG_TYPE;
if (tok_len == 12 && memcmp(source+tok_start, "c_longdouble", 12) == 0) return ZIR_REF_C_LONGDOUBLE_TYPE;
if (tok_len == 8 && memcmp(source+tok_start, "anyframe", 8) == 0) return ZIR_REF_ANYFRAME_TYPE;
if (tok_len == 14 && memcmp(source+tok_start, "comptime_float", 14) == 0) return ZIR_REF_COMPTIME_FLOAT_TYPE;
if (tok_len == 12 && memcmp(source+tok_start, "comptime_int", 12) == 0) return ZIR_REF_COMPTIME_INT_TYPE;
if (tok_len == 3 && memcmp(source+tok_start, "f16", 3) == 0) return ZIR_REF_F16_TYPE;