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resolver: Resolve for-loops

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Still nothing creates these, yet.

Bug: tint:952
Change-Id: If35f9c68ede6c6e41b6e9510f0b60751fea5bd49
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/56762
Kokoro: Kokoro <noreply+kokoro@google.com>
Auto-Submit: Ben Clayton <bclayton@google.com>
Reviewed-by: David Neto <dneto@google.com>
This commit is contained in:
Ben Clayton
2021-07-02 19:27:42 +00:00
parent 65cd25951a
commit f4075a7195
7 changed files with 167 additions and 34 deletions
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2
src/sem/block_statement.h
View File

@@ -105,7 +105,7 @@ class FunctionBlockStatement
ast::Function const* const function_;
};
/// Holds semantic information about a loop block
/// Holds semantic information about a loop block or a for-loop block
class LoopBlockStatement : public Castable<LoopBlockStatement, BlockStatement> {
public:
/// Constructor

28
src/sem/statement.cc
View File

@@ -17,7 +17,6 @@
#include "src/ast/block_statement.h"
#include "src/ast/loop_statement.h"
#include "src/ast/statement.h"
#include "src/debug.h"
#include "src/sem/block_statement.h"
#include "src/sem/statement.h"
@@ -27,32 +26,7 @@ namespace tint {
namespace sem {
Statement::Statement(const ast::Statement* declaration, const Statement* parent)
: declaration_(declaration), parent_(parent) {
#ifndef NDEBUG
if (parent_) {
auto* block = Block();
if (parent_ == block) {
// The parent of this statement is a block. We thus expect the statement
// to be an element of the block. There is one exception: a loop's
// continuing block has the loop's body as its parent, but the continuing
// block is not a statement in the body, so we rule out that case.
auto& stmts = block->Declaration()->statements();
if (std::find(stmts.begin(), stmts.end(), declaration) == stmts.end()) {
bool statement_is_continuing_for_loop = false;
if (parent_->parent_ != nullptr) {
if (auto* loop =
parent_->parent_->Declaration()->As<ast::LoopStatement>()) {
if (loop->has_continuing() && Declaration() == loop->continuing()) {
statement_is_continuing_for_loop = true;
}
}
}
TINT_ASSERT(Semantic, statement_is_continuing_for_loop);
}
}
}
#endif // NDEBUG
}
: declaration_(declaration), parent_(parent) {}
const BlockStatement* Statement::Block() const {
auto* stmt = parent_;