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parse-c: support c style cast

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This commit is contained in:
Andrew Kelley 2017-09-21 01:54:51 -04:00
parent 5ac2cf9c28
commit 2655cf1bf7
2 changed files with 22 additions and 3 deletions
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15
src/parsec.cpp
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@ -1837,6 +1837,16 @@ static AstNode *trans_array_subscript_expr(Context *c, AstNode *block, ArraySubs
return node;
}
static AstNode *trans_c_style_cast_expr(Context *c, bool result_used, AstNode *block,
CStyleCastExpr *stmt, TransLRValue lrvalue)
{
AstNode *sub_expr_node = trans_expr(c, result_used, block, stmt->getSubExpr(), lrvalue);
if (sub_expr_node == nullptr)
return nullptr;
return trans_c_cast(c, stmt->getLocStart(), stmt->getType(), sub_expr_node);
}
static AstNode *trans_stmt(Context *c, bool result_used, AstNode *block, Stmt *stmt, TransLRValue lrvalue) {
Stmt::StmtClass sc = stmt->getStmtClass();
switch (sc) {
@ -1872,6 +1882,8 @@ static AstNode *trans_stmt(Context *c, bool result_used, AstNode *block, Stmt *s
return trans_member_expr(c, block, (MemberExpr *)stmt);
case Stmt::ArraySubscriptExprClass:
return trans_array_subscript_expr(c, block, (ArraySubscriptExpr *)stmt);
case Stmt::CStyleCastExprClass:
return trans_c_style_cast_expr(c, result_used, block, (CStyleCastExpr *)stmt, lrvalue);
case Stmt::CaseStmtClass:
emit_warning(c, stmt->getLocStart(), "TODO handle C CaseStmtClass");
return nullptr;
@ -2020,9 +2032,6 @@ static AstNode *trans_stmt(Context *c, bool result_used, AstNode *block, Stmt *s
case Stmt::UserDefinedLiteralClass:
emit_warning(c, stmt->getLocStart(), "TODO handle C UserDefinedLiteralClass");
return nullptr;
case Stmt::CStyleCastExprClass:
emit_warning(c, stmt->getLocStart(), "TODO handle C CStyleCastExprClass");
return nullptr;
case Stmt::CXXFunctionalCastExprClass:
emit_warning(c, stmt->getLocStart(), "TODO handle C CXXFunctionalCastExprClass");
return nullptr;

10
test/parsec.zig
View File

@ -548,4 +548,14 @@ pub fn addCases(cases: &tests.ParseCContext) {
\\}
);
cases.add("c style cast",
\\int float_to_int(float a) {
\\ return (int)a;
\\}
,
\\export fn float_to_int(a: f32) -> c_int {
\\ return c_int(a);
\\}
);
}