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-rw-r--r--src/codegen.cpp125
1 files changed, 83 insertions, 42 deletions
diff --git a/src/codegen.cpp b/src/codegen.cpp
index 5869ef8278..2193acafd5 100644
--- a/src/codegen.cpp
+++ b/src/codegen.cpp
@@ -306,9 +306,10 @@ static void find_declarations(CodeGen *g, AstNode *node) {
case NodeTypeRoot:
case NodeTypeBlock:
case NodeTypeBinOpExpr:
- case NodeTypeFnCall:
+ case NodeTypeFnCallExpr:
case NodeTypeRootExportDecl:
case NodeTypeCastExpr:
+ case NodeTypePrefixOpExpr:
case NodeTypePrimaryExpr:
case NodeTypeGroupedExpr:
zig_unreachable();
@@ -369,6 +370,14 @@ static void check_fn_def_control_flow(CodeGen *g, AstNode *node) {
}
}
+static Buf *hack_get_fn_call_name(CodeGen *g, AstNode *node) {
+ // Assume that the expression evaluates to a simple name and return the buf
+ // TODO after type checking works we should be able to remove this hack
+ assert(node->type == NodeTypePrimaryExpr);
+ assert(node->data.primary_expr.type == PrimaryExprTypeSymbol);
+ return &node->data.primary_expr.data.symbol;
+}
+
static void analyze_node(CodeGen *g, AstNode *node) {
switch (node->type) {
case NodeTypeRoot:
@@ -477,9 +486,9 @@ static void analyze_node(CodeGen *g, AstNode *node) {
analyze_node(g, node->data.bin_op_expr.op1);
analyze_node(g, node->data.bin_op_expr.op2);
break;
- case NodeTypeFnCall:
+ case NodeTypeFnCallExpr:
{
- Buf *name = &node->data.fn_call.name;
+ Buf *name = hack_get_fn_call_name(g, node->data.fn_call_expr.fn_ref_expr);
auto entry = g->fn_table.maybe_get(name);
if (!entry) {
@@ -489,7 +498,7 @@ static void analyze_node(CodeGen *g, AstNode *node) {
FnTableEntry *fn_table_entry = entry->value;
assert(fn_table_entry->proto_node->type == NodeTypeFnProto);
int expected_param_count = fn_table_entry->proto_node->data.fn_proto.params.length;
- int actual_param_count = node->data.fn_call.params.length;
+ int actual_param_count = node->data.fn_call_expr.params.length;
if (expected_param_count != actual_param_count) {
add_node_error(g, node,
buf_sprintf("wrong number of arguments. Expected %d, got %d.",
@@ -497,8 +506,8 @@ static void analyze_node(CodeGen *g, AstNode *node) {
}
}
- for (int i = 0; i < node->data.fn_call.params.length; i += 1) {
- AstNode *child = node->data.fn_call.params.at(i);
+ for (int i = 0; i < node->data.fn_call_expr.params.length; i += 1) {
+ AstNode *child = node->data.fn_call_expr.params.at(i);
analyze_node(g, child);
}
break;
@@ -509,16 +518,17 @@ static void analyze_node(CodeGen *g, AstNode *node) {
case NodeTypeCastExpr:
zig_panic("TODO");
break;
+ case NodeTypePrefixOpExpr:
+ zig_panic("TODO");
+ break;
case NodeTypePrimaryExpr:
switch (node->data.primary_expr.type) {
case PrimaryExprTypeNumber:
case PrimaryExprTypeString:
case PrimaryExprTypeUnreachable:
+ case PrimaryExprTypeSymbol:
// nothing to do
break;
- case PrimaryExprTypeFnCall:
- analyze_node(g, node->data.primary_expr.data.fn_call);
- break;
case PrimaryExprTypeGroupedExpr:
analyze_node(g, node->data.primary_expr.data.grouped_expr);
break;
@@ -625,33 +635,6 @@ static void add_debug_source_node(CodeGen *g, AstNode *node) {
g->block_scopes.last()));
}
-static LLVMValueRef gen_fn_call(CodeGen *g, AstNode *fn_call_node) {
- assert(fn_call_node->type == NodeTypeFnCall);
-
- Buf *name = &fn_call_node->data.fn_call.name;
- FnTableEntry *fn_table_entry = g->fn_table.get(name);
- assert(fn_table_entry->proto_node->type == NodeTypeFnProto);
- int expected_param_count = fn_table_entry->proto_node->data.fn_proto.params.length;
- int actual_param_count = fn_call_node->data.fn_call.params.length;
- assert(expected_param_count == actual_param_count);
-
- LLVMValueRef *param_values = allocate<LLVMValueRef>(actual_param_count);
- for (int i = 0; i < actual_param_count; i += 1) {
- AstNode *expr_node = fn_call_node->data.fn_call.params.at(i);
- param_values[i] = gen_expr(g, expr_node);
- }
-
- add_debug_source_node(g, fn_call_node);
- LLVMValueRef result = LLVMZigBuildCall(g->builder, fn_table_entry->fn_value,
- param_values, actual_param_count, fn_table_entry->calling_convention, "");
-
- if (type_is_unreachable(fn_table_entry->proto_node->data.fn_proto.return_type)) {
- return LLVMBuildUnreachable(g->builder);
- } else {
- return result;
- }
-}
-
static LLVMValueRef find_or_create_string(CodeGen *g, Buf *str) {
auto entry = g->str_table.maybe_get(str);
if (entry) {
@@ -696,21 +679,76 @@ static LLVMValueRef gen_primary_expr(CodeGen *g, AstNode *node) {
case PrimaryExprTypeUnreachable:
add_debug_source_node(g, node);
return LLVMBuildUnreachable(g->builder);
- case PrimaryExprTypeFnCall:
- return gen_fn_call(g, prim_expr->data.fn_call);
case PrimaryExprTypeGroupedExpr:
return gen_expr(g, prim_expr->data.grouped_expr);
case PrimaryExprTypeBlock:
+ zig_panic("TODO block in expression");
break;
+ case PrimaryExprTypeSymbol:
+ zig_panic("TODO variable reference");
+ break;
+ }
+
+ zig_unreachable();
+}
+
+static LLVMValueRef gen_fn_call_expr(CodeGen *g, AstNode *node) {
+ assert(node->type == NodeTypeFnCallExpr);
+
+ Buf *name = hack_get_fn_call_name(g, node->data.fn_call_expr.fn_ref_expr);
+
+ FnTableEntry *fn_table_entry = g->fn_table.get(name);
+ assert(fn_table_entry->proto_node->type == NodeTypeFnProto);
+ int expected_param_count = fn_table_entry->proto_node->data.fn_proto.params.length;
+ int actual_param_count = node->data.fn_call_expr.params.length;
+ assert(expected_param_count == actual_param_count);
+
+ LLVMValueRef *param_values = allocate<LLVMValueRef>(actual_param_count);
+ for (int i = 0; i < actual_param_count; i += 1) {
+ AstNode *expr_node = node->data.fn_call_expr.params.at(i);
+ param_values[i] = gen_expr(g, expr_node);
}
+ add_debug_source_node(g, node);
+ LLVMValueRef result = LLVMZigBuildCall(g->builder, fn_table_entry->fn_value,
+ param_values, actual_param_count, fn_table_entry->calling_convention, "");
+
+ if (type_is_unreachable(fn_table_entry->proto_node->data.fn_proto.return_type)) {
+ return LLVMBuildUnreachable(g->builder);
+ } else {
+ return result;
+ }
+}
+
+static LLVMValueRef gen_prefix_op_expr(CodeGen *g, AstNode *node) {
+ assert(node->type == NodeTypePrefixOpExpr);
+ assert(node->data.prefix_op_expr.primary_expr);
+
+ LLVMValueRef expr = gen_expr(g, node->data.prefix_op_expr.primary_expr);
+
+ switch (node->data.prefix_op_expr.prefix_op) {
+ case PrefixOpNegation:
+ add_debug_source_node(g, node);
+ return LLVMBuildNeg(g->builder, expr, "");
+ case PrefixOpBoolNot:
+ {
+ LLVMValueRef zero = LLVMConstNull(LLVMTypeOf(expr));
+ add_debug_source_node(g, node);
+ return LLVMBuildICmp(g->builder, LLVMIntEQ, expr, zero, "");
+ }
+ case PrefixOpBinNot:
+ add_debug_source_node(g, node);
+ return LLVMBuildNot(g->builder, expr, "");
+ case PrefixOpInvalid:
+ zig_unreachable();
+ }
zig_unreachable();
}
static LLVMValueRef gen_cast_expr(CodeGen *g, AstNode *node) {
assert(node->type == NodeTypeCastExpr);
- LLVMValueRef expr = gen_primary_expr(g, node->data.cast_expr.primary_expr);
+ LLVMValueRef expr = gen_expr(g, node->data.cast_expr.prefix_op_expr);
if (!node->data.cast_expr.type)
return expr;
@@ -968,6 +1006,12 @@ static LLVMValueRef gen_expr(CodeGen *g, AstNode *node) {
return gen_return_expr(g, node);
case NodeTypeCastExpr:
return gen_cast_expr(g, node);
+ case NodeTypePrefixOpExpr:
+ return gen_prefix_op_expr(g, node);
+ case NodeTypeFnCallExpr:
+ return gen_fn_call_expr(g, node);
+ case NodeTypePrimaryExpr:
+ return gen_primary_expr(g, node);
case NodeTypeRoot:
case NodeTypeRootExportDecl:
case NodeTypeFnProto:
@@ -976,11 +1020,8 @@ static LLVMValueRef gen_expr(CodeGen *g, AstNode *node) {
case NodeTypeParamDecl:
case NodeTypeType:
case NodeTypeBlock:
- case NodeTypeFnCall:
case NodeTypeExternBlock:
case NodeTypeDirective:
- case NodeTypePrimaryExpr:
- return gen_primary_expr(g, node);
case NodeTypeGroupedExpr:
zig_unreachable();
}
generated by cgit v1.2.3 (git 2.39.1) at 2025-12-28 08:06:15 +0000