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Refactor the registers directive related rules

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git-svn-id: https://smali.googlecode.com/svn/trunk@717 55b6fa8a-2a1e-11de-a435-ffa8d773f76a
This commit is contained in:
JesusFreke@JesusFreke.com 2010-04-18 05:03:38 +00:00
parent 4fb7679be9
commit fd997c84b6
2 changed files with 25 additions and 18 deletions
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17
smali/src/main/antlr3/org/jf/smali/smaliParser.g
View File

@ -50,6 +50,7 @@ tokens {
I_METHOD_PROTOTYPE;
I_METHOD_RETURN_TYPE;
I_REGISTERS;
I_LOCALS;
I_LABELS;
I_LABEL;
I_ANNOTATIONS;
@ -316,7 +317,7 @@ statements_and_directives
$statements_and_directives::methodAnnotations = new ArrayList<CommonTree>();
}
( instruction {$method::currentAddress += $instruction.size/2;}
| {!$statements_and_directives::hasRegistersDirective}?=> registers_directive {$statements_and_directives::hasRegistersDirective = true;}
| registers_directive
| label
| catch_directive
| catchall_directive
@ -324,7 +325,7 @@ statements_and_directives
| ordered_debug_directive
| annotation {$statements_and_directives::methodAnnotations.add($annotation.tree);}
)*
-> ^(I_REGISTERS registers_directive?)
-> registers_directive?
^(I_LABELS label*)
{buildTree(I_PACKED_SWITCH_DECLARATIONS, "I_PACKED_SWITCH_DECLARATIONS", $statements_and_directives::packedSwitchDeclarations)}
{buildTree(I_SPARSE_SWITCH_DECLARATIONS, "I_SPARSE_SWITCH_DECLARATIONS", $statements_and_directives::sparseSwitchDeclarations)}
@ -335,8 +336,16 @@ statements_and_directives
{buildTree(I_ANNOTATIONS, "I_ANNOTATIONS", $statements_and_directives::methodAnnotations)};
registers_directive
: (REGISTERS_DIRECTIVE | LOCALS_DIRECTIVE) integral_literal
-> REGISTERS_DIRECTIVE? LOCALS_DIRECTIVE? integral_literal;
: (
REGISTERS_DIRECTIVE regCount=integral_literal -> ^(I_REGISTERS[$REGISTERS_DIRECTIVE, "I_REGISTERS"] $regCount)
| LOCALS_DIRECTIVE regCount2=integral_literal -> ^(I_LOCALS[$LOCALS_DIRECTIVE, "I_LOCALS"] $regCount2)
)
{
if ($statements_and_directives::hasRegistersDirective) {
throw new SemanticException(input, $registers_directive.tree, "There can only be a single .registers or .locals directive in a method");
}
$statements_and_directives::hasRegistersDirective=true;
};
/*identifiers are much more general than most languages. Any of the below can either be
the indicated type OR an identifier, depending on the context*/

26
smali/src/main/antlr3/org/jf/smali/smaliTreeWalker.g
View File

@ -487,14 +487,7 @@ method returns[ ClassDataItem.EncodedMethod encodedMethod,
methodParameterRegisters++;
}
}
registers_directive
{
if ($registers_directive.isLocalsDirective) {
totalMethodRegisters = $registers_directive.registers + methodParameterRegisters;
} else {
totalMethodRegisters = $registers_directive.registers;
}
}
registers_directive?
labels
packed_switch_declarations
sparse_switch_declarations
@ -524,6 +517,12 @@ method returns[ ClassDataItem.EncodedMethod encodedMethod,
codeItem = null;
} else {
if ($registers_directive.isLocalsDirective) {
totalMethodRegisters = $registers_directive.registers + methodParameterRegisters;
} else {
totalMethodRegisters = $registers_directive.registers;
}
if (totalMethodRegisters < methodParameterRegisters) {
throw new SemanticException(input, "This method requires at least " +
Integer.toString(methodParameterRegisters) +
@ -614,12 +613,11 @@ fully_qualified_field returns[FieldIdItem fieldIdItem]
registers_directive returns[boolean isLocalsDirective, int registers]
: {$registers = 0;}
^(I_REGISTERS
( ( REGISTERS_DIRECTIVE {$isLocalsDirective = false;}
| LOCALS_DIRECTIVE {$isLocalsDirective = true;}
)
short_integral_literal {$registers = $short_integral_literal.value;}
)?);
^( ( I_REGISTERS {$isLocalsDirective = false;}
| I_LOCALS {$isLocalsDirective = true;}
)
short_integral_literal {$registers = $short_integral_literal.value;}
);
labels
: ^(I_LABELS label_def*);