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GDScript: Use analyzer data to decide assignment conversion

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Since there might be tricky cases in the analyzer (in the case of unsafe
lines) which would need to be properly checked again. Instead, this
splits the code generator in two functions and use information set by
the analyzer to tell which function to use, without a need to re-check.
This commit is contained in:
George Marques
2021-05-26 14:05:31 -03:00
parent 313e1f62bb
commit c7459e3855
6 changed files with 74 additions and 51 deletions
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94
modules/gdscript/gdscript_byte_codegen.cpp
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@@ -779,63 +779,43 @@ void GDScriptByteCodeGenerator::write_get_member(const Address &p_target, const
append(p_name);
}
void GDScriptByteCodeGenerator::write_assign(const Address &p_target, const Address &p_source) {
if (p_target.type.has_type && !p_source.type.has_type) {
// Typed assignment.
switch (p_target.type.kind) {
case GDScriptDataType::BUILTIN: {
if (p_target.type.builtin_type == Variant::ARRAY && p_target.type.has_container_element_type()) {
append(GDScriptFunction::OPCODE_ASSIGN_TYPED_ARRAY, 2);
append(p_target);
append(p_source);
} else {
append(GDScriptFunction::OPCODE_ASSIGN_TYPED_BUILTIN, 2);
append(p_target);
append(p_source);
append(p_target.type.builtin_type);
}
} break;
case GDScriptDataType::NATIVE: {
int class_idx = GDScriptLanguage::get_singleton()->get_global_map()[p_target.type.native_type];
Variant nc = GDScriptLanguage::get_singleton()->get_global_array()[class_idx];
class_idx = get_constant_pos(nc) | (GDScriptFunction::ADDR_TYPE_CONSTANT << GDScriptFunction::ADDR_BITS);
append(GDScriptFunction::OPCODE_ASSIGN_TYPED_NATIVE, 3);
void GDScriptByteCodeGenerator::write_assign_with_conversion(const Address &p_target, const Address &p_source) {
switch (p_target.type.kind) {
case GDScriptDataType::BUILTIN: {
if (p_target.type.builtin_type == Variant::ARRAY && p_target.type.has_container_element_type()) {
append(GDScriptFunction::OPCODE_ASSIGN_TYPED_ARRAY, 2);
append(p_target);
append(p_source);
append(class_idx);
} break;
case GDScriptDataType::SCRIPT:
case GDScriptDataType::GDSCRIPT: {
Variant script = p_target.type.script_type;
int idx = get_constant_pos(script) | (GDScriptFunction::ADDR_TYPE_CONSTANT << GDScriptFunction::ADDR_BITS);
append(GDScriptFunction::OPCODE_ASSIGN_TYPED_SCRIPT, 3);
append(p_target);
append(p_source);
append(idx);
} break;
default: {
ERR_PRINT("Compiler bug: unresolved assign.");
// Shouldn't get here, but fail-safe to a regular assignment
append(GDScriptFunction::OPCODE_ASSIGN, 2);
} else {
append(GDScriptFunction::OPCODE_ASSIGN_TYPED_BUILTIN, 2);
append(p_target);
append(p_source);
append(p_target.type.builtin_type);
}
}
} else {
if (p_target.type.kind == GDScriptDataType::BUILTIN && p_target.type.builtin_type == Variant::ARRAY && p_target.type.has_container_element_type()) {
append(GDScriptFunction::OPCODE_ASSIGN_TYPED_ARRAY, 2);
} break;
case GDScriptDataType::NATIVE: {
int class_idx = GDScriptLanguage::get_singleton()->get_global_map()[p_target.type.native_type];
Variant nc = GDScriptLanguage::get_singleton()->get_global_array()[class_idx];
class_idx = get_constant_pos(nc) | (GDScriptFunction::ADDR_TYPE_CONSTANT << GDScriptFunction::ADDR_BITS);
append(GDScriptFunction::OPCODE_ASSIGN_TYPED_NATIVE, 3);
append(p_target);
append(p_source);
} else if (p_target.type.kind == GDScriptDataType::BUILTIN && p_source.type.kind == GDScriptDataType::BUILTIN && p_target.type.builtin_type != p_source.type.builtin_type) {
// Need conversion..
append(GDScriptFunction::OPCODE_ASSIGN_TYPED_BUILTIN, 2);
append(class_idx);
} break;
case GDScriptDataType::SCRIPT:
case GDScriptDataType::GDSCRIPT: {
Variant script = p_target.type.script_type;
int idx = get_constant_pos(script) | (GDScriptFunction::ADDR_TYPE_CONSTANT << GDScriptFunction::ADDR_BITS);
append(GDScriptFunction::OPCODE_ASSIGN_TYPED_SCRIPT, 3);
append(p_target);
append(p_source);
append(p_target.type.builtin_type);
} else {
// Either untyped assignment or already type-checked by the parser
append(idx);
} break;
default: {
ERR_PRINT("Compiler bug: unresolved assign.");
// Shouldn't get here, but fail-safe to a regular assignment
append(GDScriptFunction::OPCODE_ASSIGN, 2);
append(p_target);
append(p_source);
@@ -843,6 +823,24 @@ void GDScriptByteCodeGenerator::write_assign(const Address &p_target, const Addr
}
}
void GDScriptByteCodeGenerator::write_assign(const Address &p_target, const Address &p_source) {
if (p_target.type.kind == GDScriptDataType::BUILTIN && p_target.type.builtin_type == Variant::ARRAY && p_target.type.has_container_element_type()) {
append(GDScriptFunction::OPCODE_ASSIGN_TYPED_ARRAY, 2);
append(p_target);
append(p_source);
} else if (p_target.type.kind == GDScriptDataType::BUILTIN && p_source.type.kind == GDScriptDataType::BUILTIN && p_target.type.builtin_type != p_source.type.builtin_type) {
// Need conversion.
append(GDScriptFunction::OPCODE_ASSIGN_TYPED_BUILTIN, 2);
append(p_target);
append(p_source);
append(p_target.type.builtin_type);
} else {
append(GDScriptFunction::OPCODE_ASSIGN, 2);
append(p_target);
append(p_source);
}
}
void GDScriptByteCodeGenerator::write_assign_true(const Address &p_target) {
append(GDScriptFunction::OPCODE_ASSIGN_TRUE, 1);
append(p_target);