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GDScript: Implement lambdas compilation and runtime

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This commit is contained in:
George Marques
2021-03-28 11:03:13 -03:00
parent 3155368093
commit c201b212c7
16 changed files with 364 additions and 39 deletions
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15
modules/gdscript/gdscript_byte_codegen.h
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@@ -93,6 +93,7 @@ class GDScriptByteCodeGenerator : public GDScriptCodeGenerator {
Map<Variant::ValidatedUtilityFunction, int> utilities_map;
Map<GDScriptUtilityFunctions::FunctionPtr, int> gds_utilities_map;
Map<MethodBind *, int> method_bind_map;
Map<GDScriptFunction *, int> lambdas_map;
// Lists since these can be nested.
List<int> if_jmp_addrs;
@@ -293,6 +294,15 @@ class GDScriptByteCodeGenerator : public GDScriptCodeGenerator {
return pos;
}
int get_lambda_function_pos(GDScriptFunction *p_lambda_function) {
if (lambdas_map.has(p_lambda_function)) {
return lambdas_map[p_lambda_function];
}
int pos = lambdas_map.size();
lambdas_map[p_lambda_function] = pos;
return pos;
}
void alloc_ptrcall(int p_params) {
if (p_params >= ptrcall_max) {
ptrcall_max = p_params;
@@ -386,6 +396,10 @@ class GDScriptByteCodeGenerator : public GDScriptCodeGenerator {
opcodes.push_back(get_method_bind_pos(p_method));
}
void append(GDScriptFunction *p_lambda_function) {
opcodes.push_back(get_lambda_function_pos(p_lambda_function));
}
void patch_jump(int p_address) {
opcodes.write[p_address] = opcodes.size();
}
@@ -452,6 +466,7 @@ public:
virtual void write_call_self(const Address &p_target, const StringName &p_function_name, const Vector<Address> &p_arguments) override;
virtual void write_call_self_async(const Address &p_target, const StringName &p_function_name, const Vector<Address> &p_arguments) override;
virtual void write_call_script_function(const Address &p_target, const Address &p_base, const StringName &p_function_name, const Vector<Address> &p_arguments) override;
virtual void write_lambda(const Address &p_target, GDScriptFunction *p_function, const Vector<Address> &p_captures) override;
virtual void write_construct(const Address &p_target, Variant::Type p_type, const Vector<Address> &p_arguments) override;
virtual void write_construct_array(const Address &p_target, const Vector<Address> &p_arguments) override;
virtual void write_construct_typed_array(const Address &p_target, const GDScriptDataType &p_element_type, const Vector<Address> &p_arguments) override;