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transCStyleCastExpr

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This commit is contained in:
hryx 2019-06-08 15:54:15 -07:00
parent 3e14f86f9e
commit 1f82c7ba22
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GPG Key ID: 6A2784E15D7D95D6
4 changed files with 53 additions and 9 deletions
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4
src-self-hosted/clang.zig
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@ -894,3 +894,7 @@ pub extern fn ZigClangParenType_getInnerType(*const ZigClangParenType) ZigClangQ
pub extern fn ZigClangElaboratedType_getNamedType(*const ZigClangElaboratedType) ZigClangQualType;
pub extern fn ZigClangAttributedType_getEquivalentType(*const ZigClangAttributedType) ZigClangQualType;
pub extern fn ZigClangCStyleCastExpr_getBeginLoc(*const ZigClangCStyleCastExpr) ZigClangSourceLocation;
pub extern fn ZigClangCStyleCastExpr_getSubExpr(*const ZigClangCStyleCastExpr) *const ZigClangExpr;
pub extern fn ZigClangCStyleCastExpr_getType(*const ZigClangCStyleCastExpr) ZigClangQualType;

39
src-self-hosted/translate_c.zig
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@ -329,9 +329,10 @@ fn transStmt(
const sc = ZigClangStmt_getStmtClass(stmt);
switch (sc) {
.CompoundStmtClass => return transCompoundStmt(rp, scope, @ptrCast(*const ZigClangCompoundStmt, stmt)),
.CStyleCastExprClass => return transCStyleCastExprClass(rp, scope, @ptrCast(*const ZigClangCStyleCastExpr, stmt), result_used, lrvalue),
.DeclStmtClass => return transDeclStmt(rp, scope, @ptrCast(*const ZigClangDeclStmt, stmt)),
.DeclRefExprClass => return transDeclRefExpr(rp, scope, @ptrCast(*const ZigClangDeclRefExpr, stmt), lrvalue),
.ImplicitCastExprClass => return transImplicitCastExpr(rp, scope, @ptrCast(*const ZigClangImplicitCastExpr, stmt)),
.ImplicitCastExprClass => return transImplicitCastExpr(rp, scope, @ptrCast(*const ZigClangImplicitCastExpr, stmt), result_used),
else => {
return revertAndWarn(
rp,
@ -377,6 +378,30 @@ fn transCompoundStmt(rp: RestorePoint, scope: *Scope, stmt: *const ZigClangCompo
};
}
fn transCStyleCastExprClass(
rp: RestorePoint,
scope: *Scope,
stmt: *const ZigClangCStyleCastExpr,
result_used: ResultUsed,
lrvalue: LRValue,
) !TransResult {
const sub_expr = ZigClangCStyleCastExpr_getSubExpr(stmt);
const cast_node = (try transCCast(
rp,
scope,
ZigClangCStyleCastExpr_getBeginLoc(stmt),
ZigClangCStyleCastExpr_getType(stmt),
ZigClangExpr_getType(sub_expr),
(try transExpr(rp, scope, sub_expr, .used, lrvalue)).node,
));
const cast_res = TransResult{
.node = cast_node,
.child_scope = scope,
.node_scope = scope,
};
return maybeSuppressResult(rp, scope, result_used, cast_res);
}
fn transDeclStmt(rp: RestorePoint, parent_scope: *Scope, stmt: *const ZigClangDeclStmt) !TransResult {
const c = rp.c;
const block_scope = findBlockScope(parent_scope);
@ -478,27 +503,23 @@ fn transImplicitCastExpr(
rp: RestorePoint,
scope: *Scope,
expr: *const ZigClangImplicitCastExpr,
result_used: ResultUsed,
) !TransResult {
const c = rp.c;
const sub_expr = ZigClangImplicitCastExpr_getSubExpr(expr);
const sub_expr_node = try transExpr(rp, scope, @ptrCast(*const ZigClangExpr, sub_expr), .used, .r_value);
switch (ZigClangImplicitCastExpr_getCastKind(expr)) {
.BitCast => {
const node = try transExpr(rp, scope, @ptrCast(*const ZigClangExpr, sub_expr), .used, .r_value);
const dest_type = getExprQualType(c, @ptrCast(*const ZigClangExpr, expr));
const src_type = getExprQualType(c, sub_expr);
return TransResult{
.node = try transCCast(rp, scope, ZigClangImplicitCastExpr_getBeginLoc(expr), dest_type, src_type, node.node),
.node = try transCCast(rp, scope, ZigClangImplicitCastExpr_getBeginLoc(expr), dest_type, src_type, sub_expr_node.node),
.node_scope = scope,
.child_scope = scope,
};
},
.FunctionToPointerDecay, .ArrayToPointerDecay => {
return maybeSuppressResult(
rp,
scope,
.used,
try transExpr(rp, scope, @ptrCast(*const ZigClangExpr, sub_expr), .used, .r_value),
);
return maybeSuppressResult(rp, scope, result_used, sub_expr_node);
},
else => |kind| return revertAndWarn(
rp,

15
src/zig_clang.cpp
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@ -1964,3 +1964,18 @@ struct ZigClangQualType ZigClangElaboratedType_getNamedType(const struct ZigClan
auto casted = reinterpret_cast<const clang::ElaboratedType *>(self);
return bitcast(casted->getNamedType());
}
struct ZigClangSourceLocation ZigClangCStyleCastExpr_getBeginLoc(const struct ZigClangCStyleCastExpr *self) {
auto casted = reinterpret_cast<const clang::CStyleCastExpr *>(self);
return bitcast(casted->getBeginLoc());
}
const struct ZigClangExpr *ZigClangCStyleCastExpr_getSubExpr(const struct ZigClangCStyleCastExpr *self) {
auto casted = reinterpret_cast<const clang::CStyleCastExpr *>(self);
return reinterpret_cast<const struct ZigClangExpr *>(casted->getSubExpr());
}
struct ZigClangQualType ZigClangCStyleCastExpr_getType(const struct ZigClangCStyleCastExpr *self) {
auto casted = reinterpret_cast<const clang::CStyleCastExpr *>(self);
return bitcast(casted->getType());
}

4
src/zig_clang.h
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@ -885,4 +885,8 @@ ZIG_EXTERN_C struct ZigClangQualType ZigClangAttributedType_getEquivalentType(co
ZIG_EXTERN_C struct ZigClangQualType ZigClangElaboratedType_getNamedType(const struct ZigClangElaboratedType *);
ZIG_EXTERN_C struct ZigClangSourceLocation ZigClangCStyleCastExpr_getBeginLoc(const struct ZigClangCStyleCastExpr *);
ZIG_EXTERN_C const struct ZigClangExpr *ZigClangCStyleCastExpr_getSubExpr(const struct ZigClangCStyleCastExpr *);
ZIG_EXTERN_C struct ZigClangQualType ZigClangCStyleCastExpr_getType(const struct ZigClangCStyleCastExpr *);
#endif