parent
2e27407161
commit
5c15c5fc48
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@ -19229,6 +19229,11 @@ static ZigType *ir_analyze_instruction_slice(IrAnalyze *ira, IrInstructionSlice
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return ira->codegen->builtin_types.entry_invalid;
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parent_ptr = &slice_ptr->data.x_struct.fields[slice_ptr_index];
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if (parent_ptr->special == ConstValSpecialUndef) {
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ir_add_error(ira, &instruction->base, buf_sprintf("slice of undefined"));
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return ira->codegen->builtin_types.entry_invalid;
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}
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ConstExprValue *len_val = &slice_ptr->data.x_struct.fields[slice_len_index];
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switch (parent_ptr->data.x_ptr.special) {
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@ -1,6 +1,16 @@
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const tests = @import("tests.zig");
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pub fn addCases(cases: *tests.CompileErrorContext) void {
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cases.add(
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"comptime slice of an undefined slice",
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\\comptime {
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\\ var a: []u8 = undefined;
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\\ var b = a[0..10];
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\\}
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,
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".tmp_source.zig:3:14: error: slice of undefined",
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);
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cases.add(
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"implicit cast const array to mutable slice",
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\\export fn entry() void {
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