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array type syntax implies comptime

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This commit is contained in:
Andrew Kelley 2018-11-09 19:26:54 -05:00
parent 8e69a18d8c
commit ef5d7ce463
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GPG Key ID: 4E7CD66038A4D47C
3 changed files with 14 additions and 5 deletions
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1
src/analyze.cpp
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@ -181,7 +181,6 @@ ScopeFnDef *create_fndef_scope(CodeGen *g, AstNode *node, Scope *parent, ZigFn *
}
Scope *create_comptime_scope(CodeGen *g, AstNode *node, Scope *parent) {
assert(node->type == NodeTypeCompTime || node->type == NodeTypeSwitchExpr);
ScopeCompTime *scope = allocate<ScopeCompTime>(1);
init_scope(g, &scope->base, ScopeIdCompTime, node, parent);
return &scope->base;

9
src/ir.cpp
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@ -5433,6 +5433,7 @@ static IrInstruction *ir_gen_array_type(IrBuilder *irb, Scope *scope, AstNode *n
bool is_volatile = node->data.array_type.is_volatile;
AstNode *align_expr = node->data.array_type.align_expr;
Scope *comptime_scope = create_comptime_scope(irb->codegen, node, scope);
if (size_node) {
if (is_const) {
add_node_error(irb->codegen, node, buf_create_from_str("const qualifier invalid on array type"));
@ -5447,11 +5448,11 @@ static IrInstruction *ir_gen_array_type(IrBuilder *irb, Scope *scope, AstNode *n
return irb->codegen->invalid_instruction;
}
IrInstruction *size_value = ir_gen_node(irb, size_node, scope);
IrInstruction *size_value = ir_gen_node(irb, size_node, comptime_scope);
if (size_value == irb->codegen->invalid_instruction)
return size_value;
IrInstruction *child_type = ir_gen_node(irb, child_type_node, scope);
IrInstruction *child_type = ir_gen_node(irb, child_type_node, comptime_scope);
if (child_type == irb->codegen->invalid_instruction)
return child_type;
@ -5459,14 +5460,14 @@ static IrInstruction *ir_gen_array_type(IrBuilder *irb, Scope *scope, AstNode *n
} else {
IrInstruction *align_value;
if (align_expr != nullptr) {
align_value = ir_gen_node(irb, align_expr, scope);
align_value = ir_gen_node(irb, align_expr, comptime_scope);
if (align_value == irb->codegen->invalid_instruction)
return align_value;
} else {
align_value = nullptr;
}
IrInstruction *child_type = ir_gen_node(irb, child_type_node, scope);
IrInstruction *child_type = ir_gen_node(irb, child_type_node, comptime_scope);
if (child_type == irb->codegen->invalid_instruction)
return child_type;

9
test/cases/array.zig
View File

@ -162,3 +162,12 @@ test "comptime evalutating function that takes array by value" {
_ = comptime testArrayByValAtComptime(arr);
_ = comptime testArrayByValAtComptime(arr);
}
test "implicit comptime in array type size" {
var arr: [plusOne(10)]bool = undefined;
assert(arr.len == 11);
}
fn plusOne(x: u32) u32 {
return x + 1;
}