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Proof of Concept macro expansion working. #169

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This commit is contained in:
Jesper Gravgaard 2020-04-01 14:51:16 +02:00
parent 9eb17e7ed1
commit b7851e7305
2 changed files with 15 additions and 9 deletions
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2
src/test/java/dk/camelot64/kickc/parsing/macros/Macros.g4
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@ -39,4 +39,4 @@ IDENTIFIER: [a-zA-Z_]+ ;
NUMBER: [0-9]+ ;
DEFINE: '#define' ;
DEFINE_CONTINUE: '\\\n' ;
WHITESPACE: [ \t\r\n]+ -> channel(1) ; // skip; //
WHITESPACE: [ \t\r\n]+ -> channel(1) ; // Send whitespace to the hidden WS channel

22
src/test/java/dk/camelot64/kickc/parsing/macros/TestMacrosParser.java
View File

@ -28,6 +28,10 @@ public class TestMacrosParser {
assertEquals("+(name:a,*(name:b,name:c));", parse("a+b*c;"));
// Addition and a cast
assertEquals("+(cast(char,name:b),num:1);", parse("(char)b+1;"));
// Two statements
assertEquals("+(name:a,name:c);*(name:d,num:2);", parse("a+c;d*2;"));
// Some whitespace
assertEquals("+(name:a,name:c);", parse(" \ta + \nc ;"));
}
/**
@ -40,7 +44,9 @@ public class TestMacrosParser {
// A simple used define
assertEquals("+(*(name:axe,num:2),name:axe);", parse("#define A axe\nA*2+A;"));
// A define using a special token class
assertEquals("+(name:axe,num:1);", parse("#define A axe\n#define B +\nA B 1;"));
assertEquals("+(name:a,num:1);", parse("#define A a\n#define B +\n\n#define C 1\nA B C;"));
// A define with two tokens
assertEquals("+(name:a,num:1);", parse("#define A a+\nA 1;"));
}
/**
@ -66,14 +72,15 @@ public class TestMacrosParser {
}
});
/*
Map<String, List<Token>> macros = new LinkedHashMap<>();
final ArrayList<Token> finalTokens = new ArrayList<>();
Token token = lexer.nextToken();
while(token.getType() != Token.EOF) {
if(token.getType() == MacrosLexer.DEFINE) {
// Define a new macro
final Token name = lexer.nextToken();
// Define a new macro - find name
Token name = lexer.nextToken();
while(name.getType()==MacrosLexer.WHITESPACE)
name = lexer.nextToken();
// Find value by gobbling tokens until the line ends
final ArrayList<Token> macroValue = new ArrayList<>();
boolean macroRead = true;
@ -102,11 +109,10 @@ public class TestMacrosParser {
}
token = lexer.nextToken();
}
MacrosParser parser = new MacrosParser(new BufferedTokenStream(new ListTokenSource(finalTokens)));
*/
MacrosParser parser = new MacrosParser(new CommonTokenStream(new ListTokenSource(finalTokens)));
CommonTokenStream tokenStream = new CommonTokenStream(lexer);
MacrosParser parser = new MacrosParser(tokenStream);
//CommonTokenStream tokenStream = new CommonTokenStream(lexer);
//MacrosParser parser = new MacrosParser(tokenStream);
parser.setBuildParseTree(true);
parser.addErrorListener(new BaseErrorListener() {