X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fglsl%2Fsyntax.cpp;h=32a7b12c6639aebd69344aa7a2f6408c67de308f;hb=d8bdf61007978e2c3670a22a58e2f105e8347537;hp=7f2efdce93ebb30557be4b713d49125bca646da0;hpb=7f29c6d2a4eee36538d7ccf24980e749592e2444;p=libs%2Fgl.git

diff --git a/source/glsl/syntax.cpp b/source/glsl/syntax.cpp
index 7f2efdce..32a7b12c 100644
--- a/source/glsl/syntax.cpp
+++ b/source/glsl/syntax.cpp
@@ -1,3 +1,4 @@
+#include <msp/core/maputils.h>
 #include "syntax.h"
 #include "visitor.h"
 
@@ -9,53 +10,60 @@ namespace SL {
 
 const Operator Operator::operators[] =
 {
-	{ "[", 2, BINARY, LEFT_TO_RIGHT },
-	{ "(", 2, BINARY, LEFT_TO_RIGHT },
-	{ ".", 2, BINARY, LEFT_TO_RIGHT },
-	{ "++", 2, POSTFIX, LEFT_TO_RIGHT },
-	{ "--", 2, POSTFIX, LEFT_TO_RIGHT },
-	{ "++", 3, PREFIX, RIGHT_TO_LEFT },
-	{ "--", 3, PREFIX, RIGHT_TO_LEFT },
-	{ "+", 3, PREFIX, RIGHT_TO_LEFT },
-	{ "-", 3, PREFIX, RIGHT_TO_LEFT },
-	{ "~", 3, PREFIX, RIGHT_TO_LEFT },
-	{ "!", 3, PREFIX, RIGHT_TO_LEFT },
-	{ "*", 4, BINARY, LEFT_TO_RIGHT },
-	{ "/", 4, BINARY, LEFT_TO_RIGHT },
-	{ "%", 4, BINARY, LEFT_TO_RIGHT },
-	{ "+", 5, BINARY, LEFT_TO_RIGHT },
-	{ "-", 5, BINARY, LEFT_TO_RIGHT },
-	{ "<<", 6, BINARY, LEFT_TO_RIGHT },
-	{ ">>", 6, BINARY, LEFT_TO_RIGHT },
-	{ "<", 7, BINARY, LEFT_TO_RIGHT },
-	{ ">", 7, BINARY, LEFT_TO_RIGHT },
-	{ "<=", 7, BINARY, LEFT_TO_RIGHT },
-	{ ">=", 7, BINARY, LEFT_TO_RIGHT },
-	{ "==", 8, BINARY, LEFT_TO_RIGHT },
-	{ "!=", 8, BINARY, LEFT_TO_RIGHT },
-	{ "&", 9, BINARY, LEFT_TO_RIGHT },
-	{ "^", 10, BINARY, LEFT_TO_RIGHT },
-	{ "|", 11, BINARY, LEFT_TO_RIGHT },
-	{ "&&", 12, BINARY, LEFT_TO_RIGHT },
-	{ "^^", 13, BINARY, LEFT_TO_RIGHT },
-	{ "||", 14, BINARY, LEFT_TO_RIGHT },
-	{ "?", 15, BINARY, RIGHT_TO_LEFT },
-	{ ":", 15, BINARY, RIGHT_TO_LEFT },
-	{ "=", 16, BINARY, RIGHT_TO_LEFT },
-	{ "+=", 16, BINARY, RIGHT_TO_LEFT },
-	{ "-=", 16, BINARY, RIGHT_TO_LEFT },
-	{ "*=", 16, BINARY, RIGHT_TO_LEFT },
-	{ "/=", 16, BINARY, RIGHT_TO_LEFT },
-	{ "%=", 16, BINARY, RIGHT_TO_LEFT },
-	{ "<<=", 16, BINARY, RIGHT_TO_LEFT },
-	{ ">>=", 16, BINARY, RIGHT_TO_LEFT },
-	{ "&=", 16, BINARY, RIGHT_TO_LEFT },
-	{ "^=", 16, BINARY, RIGHT_TO_LEFT },
-	{ "|=", 16, BINARY, RIGHT_TO_LEFT },
-	{ ",", 17, BINARY, LEFT_TO_RIGHT },
-	{ { 0 }, 18, NO_OPERATOR, LEFT_TO_RIGHT }
+	{ "[", "]", 2, BINARY, LEFT_TO_RIGHT },
+	{ "(", ")", 2, POSTFIX, LEFT_TO_RIGHT },
+	{ ".", { }, 2, POSTFIX, LEFT_TO_RIGHT },
+	{ "++", { }, 2, POSTFIX, LEFT_TO_RIGHT },
+	{ "--", { }, 2, POSTFIX, LEFT_TO_RIGHT },
+	{ "++", { }, 3, PREFIX, RIGHT_TO_LEFT },
+	{ "--", { }, 3, PREFIX, RIGHT_TO_LEFT },
+	{ "+", { }, 3, PREFIX, RIGHT_TO_LEFT },
+	{ "-", { }, 3, PREFIX, RIGHT_TO_LEFT },
+	{ "~", { }, 3, PREFIX, RIGHT_TO_LEFT },
+	{ "!", { }, 3, PREFIX, RIGHT_TO_LEFT },
+	{ "*", { }, 4, BINARY, ASSOCIATIVE },
+	{ "/", { }, 4, BINARY, LEFT_TO_RIGHT },
+	{ "%", { }, 4, BINARY, LEFT_TO_RIGHT },
+	{ "+", { }, 5, BINARY, ASSOCIATIVE },
+	{ "-", { }, 5, BINARY, LEFT_TO_RIGHT },
+	{ "<<", { }, 6, BINARY, LEFT_TO_RIGHT },
+	{ ">>", { }, 6, BINARY, LEFT_TO_RIGHT },
+	{ "<", { }, 7, BINARY, LEFT_TO_RIGHT },
+	{ ">", { }, 7, BINARY, LEFT_TO_RIGHT },
+	{ "<=", { }, 7, BINARY, LEFT_TO_RIGHT },
+	{ ">=", { }, 7, BINARY, LEFT_TO_RIGHT },
+	{ "==", { }, 8, BINARY, LEFT_TO_RIGHT },
+	{ "!=", { }, 8, BINARY, LEFT_TO_RIGHT },
+	{ "&", { }, 9, BINARY, ASSOCIATIVE },
+	{ "^", { }, 10, BINARY, ASSOCIATIVE },
+	{ "|", { }, 11, BINARY, ASSOCIATIVE },
+	{ "&&", { }, 12, BINARY, ASSOCIATIVE },
+	{ "^^", { }, 13, BINARY, ASSOCIATIVE },
+	{ "||", { }, 14, BINARY, ASSOCIATIVE },
+	{ "?", ":", 15, TERNARY, RIGHT_TO_LEFT },
+	{ "=", { }, 16, BINARY, RIGHT_TO_LEFT },
+	{ "+=", { }, 16, BINARY, RIGHT_TO_LEFT },
+	{ "-=", { }, 16, BINARY, RIGHT_TO_LEFT },
+	{ "*=", { }, 16, BINARY, RIGHT_TO_LEFT },
+	{ "/=", { }, 16, BINARY, RIGHT_TO_LEFT },
+	{ "%=", { }, 16, BINARY, RIGHT_TO_LEFT },
+	{ "<<=", { }, 16, BINARY, RIGHT_TO_LEFT },
+	{ ">>=", { }, 16, BINARY, RIGHT_TO_LEFT },
+	{ "&=", { }, 16, BINARY, RIGHT_TO_LEFT },
+	{ "^=", { }, 16, BINARY, RIGHT_TO_LEFT },
+	{ "|=", { }, 16, BINARY, RIGHT_TO_LEFT },
+	{ ",", { }, 17, BINARY, LEFT_TO_RIGHT },
+	{ { 0 }, { }, 18, NO_OPERATOR, LEFT_TO_RIGHT }
 };
 
+const Operator &Operator::get_operator(const string &token, Type type)
+{
+	for(const Operator *i=operators; i->type; ++i)
+		if(i->type==type && i->token==token)
+			return *i;
+	throw key_error(token);
+}
+
 
 template<typename C>
 NodeContainer<C>::NodeContainer(const NodeContainer &c):
@@ -66,12 +74,6 @@ NodeContainer<C>::NodeContainer(const NodeContainer &c):
 }
 
 
-Statement::Statement():
-	source(0),
-	line(1)
-{ }
-
-
 Block::Block():
 	use_braces(false),
 	parent(0)
@@ -90,13 +92,14 @@ void Block::visit(NodeVisitor &visitor)
 }
 
 
-void Literal::visit(NodeVisitor &visitor)
-{
-	visitor.visit(*this);
-}
+Expression::Expression():
+	oper(0),
+	type(0),
+	lvalue(false)
+{ }
 
 
-void ParenthesizedExpression::visit(NodeVisitor &visitor)
+void Literal::visit(NodeVisitor &visitor)
 {
 	visitor.visit(*this);
 }
@@ -107,6 +110,7 @@ VariableReference::VariableReference():
 { }
 
 VariableReference::VariableReference(const VariableReference &other):
+	Expression(other),
 	name(other.name),
 	declaration(0)
 { }
@@ -122,6 +126,7 @@ InterfaceBlockReference::InterfaceBlockReference():
 { }
 
 InterfaceBlockReference::InterfaceBlockReference(const InterfaceBlockReference &other):
+	Expression(other),
 	name(other.name),
 	declaration(0)
 { }
@@ -137,6 +142,7 @@ MemberAccess::MemberAccess():
 { }
 
 MemberAccess::MemberAccess(const MemberAccess &other):
+	Expression(other),
 	left(other.left),
 	member(other.member),
 	declaration(0)
@@ -148,9 +154,17 @@ void MemberAccess::visit(NodeVisitor &visitor)
 }
 
 
-UnaryExpression::UnaryExpression():
-	prefix(true)
-{ }
+Swizzle::Swizzle():
+	count(0)
+{
+	fill(components, components+4, 0);
+}
+
+void Swizzle::visit(NodeVisitor &visitor)
+{
+	visitor.visit(*this);
+}
+
 
 void UnaryExpression::visit(NodeVisitor &visitor)
 {
@@ -165,13 +179,12 @@ void BinaryExpression::visit(NodeVisitor &visitor)
 
 
 Assignment::Assignment():
-	self_referencing(false),
-	target_declaration(0)
+	self_referencing(false)
 { }
 
 Assignment::Assignment(const Assignment &other):
-	self_referencing(other.self_referencing),
-	target_declaration(0)
+	BinaryExpression(other),
+	self_referencing(other.self_referencing)
 { }
 
 void Assignment::visit(NodeVisitor &visitor)
@@ -180,12 +193,37 @@ void Assignment::visit(NodeVisitor &visitor)
 }
 
 
+Assignment::Target::Target(Statement *d):
+	declaration(d),
+	chain_len(0)
+{
+	fill(chain, chain+7, 0);
+}
+
+bool Assignment::Target::operator<(const Target &other) const
+{
+	if(declaration!=other.declaration)
+		return declaration<other.declaration;
+	for(unsigned i=0; (i<7 && i<chain_len && i<other.chain_len); ++i)
+		if(chain[i]!=other.chain[i])
+			return chain[i]<other.chain[i];
+	return chain_len<other.chain_len;
+}
+
+
+void TernaryExpression::visit(NodeVisitor &visitor)
+{
+	visitor.visit(*this);
+}
+
+
 FunctionCall::FunctionCall():
 	constructor(false),
 	declaration(0)
 { }
 
 FunctionCall::FunctionCall(const FunctionCall &other):
+	Expression(other),
 	name(other.name),
 	constructor(other.constructor),
 	arguments(other.arguments),
@@ -228,11 +266,57 @@ void InterfaceLayout::visit(NodeVisitor &visitor)
 }
 
 
-StructDeclaration::StructDeclaration()
+BasicTypeDeclaration::BasicTypeDeclaration():
+	kind(ALIAS),
+	size(0),
+	base_type(0)
+{ }
+
+BasicTypeDeclaration::BasicTypeDeclaration(const BasicTypeDeclaration &other):
+	TypeDeclaration(other),
+	kind(other.kind),
+	size(other.size),
+	base(other.base),
+	base_type(0)
+{ }
+
+void BasicTypeDeclaration::visit(NodeVisitor &visitor)
+{
+	visitor.visit(*this);
+}
+
+
+ImageTypeDeclaration::ImageTypeDeclaration():
+	dimensions(TWO),
+	array(false),
+	sampled(true),
+	shadow(false)
+{ }
+
+void ImageTypeDeclaration::visit(NodeVisitor &visitor)
+{
+	visitor.visit(*this);
+}
+
+
+StructDeclaration::StructDeclaration():
+	interface_block(0)
 {
 	members.use_braces = true;
 }
 
+StructDeclaration::StructDeclaration(const StructDeclaration &other):
+	TypeDeclaration(other),
+	members(other.members),
+	interface_block(0)
+{ }
+
+StructDeclaration::~StructDeclaration()
+{
+	if(interface_block && interface_block->struct_declaration==this)
+		interface_block->struct_declaration = 0;
+}
+
 void StructDeclaration::visit(NodeVisitor &visitor)
 {
 	visitor.visit(*this);
@@ -247,6 +331,7 @@ VariableDeclaration::VariableDeclaration():
 { }
 
 VariableDeclaration::VariableDeclaration(const VariableDeclaration &other):
+	Statement(other),
 	layout(other.layout),
 	constant(other.constant),
 	sampling(other.sampling),
@@ -276,17 +361,20 @@ void VariableDeclaration::visit(NodeVisitor &visitor)
 
 InterfaceBlock::InterfaceBlock():
 	array(false),
+	type_declaration(0),
+	struct_declaration(0),
 	linked_block(0)
-{
-	members.use_braces = true;
-}
+{ }
 
 InterfaceBlock::InterfaceBlock(const InterfaceBlock &other):
+	Statement(other),
 	interface(other.interface),
-	name(other.name),
+	block_name(other.block_name),
 	members(other.members),
 	instance_name(other.instance_name),
 	array(other.array),
+	type_declaration(0),
+	struct_declaration(0),
 	linked_block(0)
 { }
 
@@ -294,6 +382,8 @@ InterfaceBlock::~InterfaceBlock()
 {
 	if(linked_block && linked_block->linked_block==this)
 		linked_block->linked_block = 0;
+	if(struct_declaration && struct_declaration->interface_block==this)
+		struct_declaration->interface_block = 0;
 }
 
 void InterfaceBlock::visit(NodeVisitor &visitor)
@@ -303,15 +393,23 @@ void InterfaceBlock::visit(NodeVisitor &visitor)
 
 
 FunctionDeclaration::FunctionDeclaration():
-	definition(0)
+	virtua(false),
+	overrd(false),
+	definition(0),
+	return_type_declaration(0)
 { }
 
 FunctionDeclaration::FunctionDeclaration(const FunctionDeclaration &other):
+	Statement(other),
 	return_type(other.return_type),
 	name(other.name),
 	parameters(other.parameters),
+	virtua(other.virtua),
+	overrd(other.overrd),
 	body(other.body),
-	definition(other.definition==&other ? this : 0)
+	signature(other.signature),
+	definition(other.definition==&other ? this : 0),
+	return_type_declaration(0)
 { }
 
 void FunctionDeclaration::visit(NodeVisitor &visitor)
@@ -366,6 +464,27 @@ Module::Module():
 	shared(Stage::SHARED)
 { }
 
+
+string get_unused_variable_name(const Block &block, const string &base)
+{
+	string name = base;
+
+	unsigned number = 1;
+	unsigned base_size = name.size();
+	while(1)
+	{
+		bool unused = true;
+		for(const Block *b=&block; (unused && b); b=b->parent)
+			unused = !b->variables.count(name);
+		if(unused)
+			return name;
+
+		name.erase(base_size);
+		name += format("_%d", number);
+		++number;
+	}
+}
+
 } // namespace SL
 } // namespace GL
 } // namespace Msp